CVE-2026-76455 (GCVE-0-2026-76455)
Vulnerability from cvelistv5 – Published: 2026-10-07 16:15 – Updated: 2026-10-08 03:55
VLAI
EPSS
VEX
Title
Cisco NX-OS Software Security Hardening Release: October 2026 - Improper Access Control Vulnerabilities
Summary
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco NX-OS engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities.
The vulnerabilities tracked by CVE-2026-76455 are related to improper access control issues that are grouped under the Common Weakness Enumeration (CWE) CWE-284.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-07 00:00 UTC
CWE
- CWE-284 - Improper Access Control
Assigner
References
1 reference
Impacted products
3 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Cisco | Cisco NX-OS Software |
Affected:
8.2(5)
Affected: 7.3(5)D1(1) Affected: 8.4(2) Affected: 8.4(3) Affected: 9.2(3) Affected: 8.2(1) Affected: 7.3(1)D1(1) Affected: 9.2(2v) Affected: 7.3(0)D1(1) Affected: 7.3(4)D1(1) Affected: 9.2(1) Affected: 9.2(2t) Affected: 9.2(3y) Affected: 9.3(2) Affected: 7.3(1)DY(1) Affected: 8.1(1) Affected: 8.2(2) Affected: 8.3(2) Affected: 7.3(2)D1(3a) Affected: 9.2(4) Affected: 8.1(2) Affected: 7.3(3)D1(1) Affected: 8.2(3) Affected: 8.3(1) Affected: 8.4(1) Affected: 8.1(1b) Affected: 7.3(0)DX(1) Affected: 7.3(2)D1(1) Affected: 9.3(1) Affected: 7.3(2)D1(2) Affected: 8.2(4) Affected: 7.3(0)DY(1) Affected: 9.3(1z) Affected: 9.2(2) Affected: 8.1(2a) Affected: 7.3(2)D1(3) Affected: 8.1(1a) Affected: 8.4(1a) Affected: 9.3(3) Affected: 7.3(2)D1(1d) Affected: 9.3(4) Affected: 7.3(6)D1(1) Affected: 8.2(6) Affected: 9.3(5) Affected: 8.4(2a) Affected: 8.4(2b) Affected: 8.5(1) Affected: 9.3(6) Affected: 8.4(4) Affected: 7.3(7)D1(1) Affected: 8.4(2c) Affected: 9.3(5w) Affected: 8.2(7) Affected: 9.3(7) Affected: 9.3(7k) Affected: 7.3(8)D1(1) Affected: 9.3(7a) Affected: 8.2(7a) Affected: 9.3(8) Affected: 8.4(4a) Affected: 8.4(2d) Affected: 8.4(5) Affected: 8.2(8) Affected: 9.3(9) Affected: 7.3(9)D1(1) Affected: 8.4(6) Affected: 8.4(2e) Affected: 9.3(10) Affected: 9.2(1a) Affected: 8.2(9) Affected: 10.3(1) Affected: 8.4(7) Affected: 10.3(2) Affected: 8.4(6a) Affected: 9.3(11) Affected: 10.3(3) Affected: 9.4(1) Affected: 9.3(2a) Affected: 8.4(2f) Affected: 8.2(10) Affected: 9.3(12) Affected: 10.4(1) Affected: 8.4(8) Affected: 10.3(99w) Affected: 10.3(3w) Affected: 10.3(99x) Affected: 10.3(3o) Affected: 8.4(9) Affected: 10.3(4) Affected: 10.3(3p) Affected: 10.3(4a) Affected: 9.4(1a) Affected: 10.4(2) Affected: 10.3(3q) Affected: 9.3(13) Affected: 8.2(11) Affected: 9.4(2) Affected: 10.3(5) Affected: 10.4(3) Affected: 10.3(3x) Affected: 10.3(4g) Affected: 10.5(1) Affected: 8.4(10) Affected: 9.4(2a) Affected: 10.3(3r) Affected: 10.3(6) Affected: 9.3(14) Affected: 10.4(4) Affected: 10.3(4h) Affected: 10.5(2) Affected: 10.5(1j) Affected: 8.4(11) Affected: 9.4(3) Affected: 10.3(7) Affected: 10.4(5) Affected: 10.5(3) Affected: 9.3(15) Affected: 9.4(3a) Affected: 10.4(4g) Affected: 10.5(4) Affected: 9.4(3b) Affected: 8.4(12) Affected: 10.6(1) Affected: 10.5(3t) Affected: 10.3(8) Affected: 10.4(6) Affected: 10.5(3s) Affected: 10.5(3e) Affected: 9.4(4) Affected: 10.5(3o) Affected: 9.3(16) Affected: 10.6(1s) Affected: 10.6(2) Affected: 10.5(3p) Affected: 9.4(5) Affected: 10.3(9) Affected: 10.6(2s) Affected: 8.4(13) Affected: 10.6(3) Affected: 10.4(7) Affected: 10.5(5) Affected: 9.3(17) Affected: 10.6(2n) Affected: 10.6(3q) Affected: 10.6(3o) Affected: 10.6(3s) |
guessed | |
| Cisco | Cisco NX-OS System Software in ACI Mode |
Affected:
15.2(1g)
Affected: 15.2(2e) Affected: 15.2(2f) Affected: 15.2(2g) Affected: 15.2(2h) Affected: 15.2(3f) Affected: 15.2(3e) Affected: 15.2(3g) Affected: 15.2(4d) Affected: 15.2(4e) Affected: 15.2(5c) Affected: 15.2(5d) Affected: 16.0(1g) Affected: 15.2(5e) Affected: 15.2(4f) Affected: 15.2(6e) Affected: 15.2(6h) Affected: 16.0(1j) Affected: 15.2(6g) Affected: 15.2(7f) Affected: 15.2(7g) Affected: 16.0(2h) Affected: 15.2(8d) Affected: 16.0(2j) Affected: 15.2(8e) Affected: 16.0(3d) Affected: 16.0(3e) Affected: 15.2(8f) Affected: 15.2(8g) Affected: 15.3(1d) Affected: 15.2(8h) Affected: 16.0(4c) Affected: 15.3(2a) Affected: 15.2(8i) Affected: 16.0(5h) Affected: 15.3(2b) Affected: 16.0(3g) Affected: 16.0(5j) Affected: 15.3(2c) Affected: 16.0(6c) Affected: 15.3(2d) Affected: 16.1(1f) Affected: 16.0(7e) Affected: 16.0(8e) Affected: 15.3(2e) Affected: 16.0(8f) Affected: 16.1(2f) Affected: 16.1(2g) Affected: 15.3(2f) Affected: 16.0(9c) Affected: 16.1(3f) Affected: 16.0(9d) Affected: 16.0(6h) Affected: 16.0(8h) Affected: 16.1(3g) Affected: 16.0(9e) Affected: 16.1(4h) Affected: 16.1(5e) Affected: 16.2(1g) Affected: 16.0(9f) Affected: 16.2(2e) |
guessed | |
| Cisco | Cisco Unified Computing System (Managed) |
Affected:
4.0(1a)
Affected: 4.1(1d) Affected: 4.0(4f) Affected: 4.0(4c) Affected: 4.0(2b) Affected: 4.1(2a) Affected: 4.0(4a) Affected: 4.0(4e) Affected: 4.0(4h) Affected: 4.0(2a) Affected: 4.1(1c) Affected: 4.0(1b) Affected: 4.1(1e) Affected: 4.0(4d) Affected: 4.0(4b) Affected: 4.0(2e) Affected: 4.1(1a) Affected: 4.0(4g) Affected: 4.0(1d) Affected: 4.0(1c) Affected: 4.0(4i) Affected: 4.0(2d) Affected: 4.1(1b) Affected: 4.1(2b) Affected: 4.0(4k) Affected: 4.1(3a) Affected: 4.1(3b) Affected: 4.1(2c) Affected: 4.0(4l) Affected: 4.1(4a) Affected: 4.1(3c) Affected: 4.1(3d) Affected: 4.2(1c) Affected: 4.2(1d) Affected: 4.0(4m) Affected: 4.1(3e) Affected: 4.2(1f) Affected: 4.1(3f) Affected: 4.2(1i) Affected: 4.1(3h) Affected: 4.2(1k) Affected: 4.2(1l) Affected: 4.0(4n) Affected: 4.2(1m) Affected: 4.1(3i) Affected: 4.2(2a) Affected: 4.2(1n) Affected: 4.1(3j) Affected: 4.2(2c) Affected: 4.2(2d) Affected: 4.2(3b) Affected: 4.1(3k) Affected: 4.0(4o) Affected: 4.2(2e) Affected: 4.2(3d) Affected: 4.2(3e) Affected: 4.2(3g) Affected: 4.1(3l) Affected: 4.3(2b) Affected: 4.2(3h) Affected: 4.2(3i) Affected: 4.3(2c) Affected: 4.1(3m) Affected: 4.3(2e) Affected: 4.3(3a) Affected: 4.2(3j) Affected: 4.3(3c) Affected: 4.3(4a) Affected: 4.2(3k) Affected: 4.3(4b) Affected: 4.3(4c) Affected: 4.2(3l) Affected: 4.3(4d) Affected: 4.3(2f) Affected: 4.2(3m) Affected: 4.3(5a) Affected: 4.3(4e) Affected: 4.1(3n) Affected: 4.3(4f) Affected: 4.2(3n) Affected: 4.3(5c) Affected: 4.2(3o) Affected: 4.3(5d) Affected: 4.3(6a) Affected: 4.3(6b) Affected: 4.3(5e) Affected: 4.3(6c) Affected: 4.2(3p) Affected: 6.0(1b) Affected: 6.0(1c) Affected: 4.3(6d) Affected: 6.0(1d) Affected: 6.0(1e) Affected: 4.3(6e) Affected: 6.0(1f) Affected: 4.3(6f) Affected: 6.0(2b) Affected: 6.0(1h) Affected: 4.2(3r) Affected: 6.0(2c) Affected: 4.3(6g) Affected: 6.0(2d) Affected: 4.3(6h) Affected: 4.2(3s) Affected: 4.3(6i) |
guessed |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-76455",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-07T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-08T03:55:52.070Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"product": "Cisco NX-OS Software",
"vendor": "Cisco",
"versions": [
{
"status": "affected",
"version": "8.2(5)"
},
{
"status": "affected",
"version": "7.3(5)D1(1)"
},
{
"status": "affected",
"version": "8.4(2)"
},
{
"status": "affected",
"version": "8.4(3)"
},
{
"status": "affected",
"version": "9.2(3)"
},
{
"status": "affected",
"version": "8.2(1)"
},
{
"status": "affected",
"version": "7.3(1)D1(1)"
},
{
"status": "affected",
"version": "9.2(2v)"
},
{
"status": "affected",
"version": "7.3(0)D1(1)"
},
{
"status": "affected",
"version": "7.3(4)D1(1)"
},
{
"status": "affected",
"version": "9.2(1)"
},
{
"status": "affected",
"version": "9.2(2t)"
},
{
"status": "affected",
"version": "9.2(3y)"
},
{
"status": "affected",
"version": "9.3(2)"
},
{
"status": "affected",
"version": "7.3(1)DY(1)"
},
{
"status": "affected",
"version": "8.1(1)"
},
{
"status": "affected",
"version": "8.2(2)"
},
{
"status": "affected",
"version": "8.3(2)"
},
{
"status": "affected",
"version": "7.3(2)D1(3a)"
},
{
"status": "affected",
"version": "9.2(4)"
},
{
"status": "affected",
"version": "8.1(2)"
},
{
"status": "affected",
"version": "7.3(3)D1(1)"
},
{
"status": "affected",
"version": "8.2(3)"
},
{
"status": "affected",
"version": "8.3(1)"
},
{
"status": "affected",
"version": "8.4(1)"
},
{
"status": "affected",
"version": "8.1(1b)"
},
{
"status": "affected",
"version": "7.3(0)DX(1)"
},
{
"status": "affected",
"version": "7.3(2)D1(1)"
},
{
"status": "affected",
"version": "9.3(1)"
},
{
"status": "affected",
"version": "7.3(2)D1(2)"
},
{
"status": "affected",
"version": "8.2(4)"
},
{
"status": "affected",
"version": "7.3(0)DY(1)"
},
{
"status": "affected",
"version": "9.3(1z)"
},
{
"status": "affected",
"version": "9.2(2)"
},
{
"status": "affected",
"version": "8.1(2a)"
},
{
"status": "affected",
"version": "7.3(2)D1(3)"
},
{
"status": "affected",
"version": "8.1(1a)"
},
{
"status": "affected",
"version": "8.4(1a)"
},
{
"status": "affected",
"version": "9.3(3)"
},
{
"status": "affected",
"version": "7.3(2)D1(1d)"
},
{
"status": "affected",
"version": "9.3(4)"
},
{
"status": "affected",
"version": "7.3(6)D1(1)"
},
{
"status": "affected",
"version": "8.2(6)"
},
{
"status": "affected",
"version": "9.3(5)"
},
{
"status": "affected",
"version": "8.4(2a)"
},
{
"status": "affected",
"version": "8.4(2b)"
},
{
"status": "affected",
"version": "8.5(1)"
},
{
"status": "affected",
"version": "9.3(6)"
},
{
"status": "affected",
"version": "8.4(4)"
},
{
"status": "affected",
"version": "7.3(7)D1(1)"
},
{
"status": "affected",
"version": "8.4(2c)"
},
{
"status": "affected",
"version": "9.3(5w)"
},
{
"status": "affected",
"version": "8.2(7)"
},
{
"status": "affected",
"version": "9.3(7)"
},
{
"status": "affected",
"version": "9.3(7k)"
},
{
"status": "affected",
"version": "7.3(8)D1(1)"
},
{
"status": "affected",
"version": "9.3(7a)"
},
{
"status": "affected",
"version": "8.2(7a)"
},
{
"status": "affected",
"version": "9.3(8)"
},
{
"status": "affected",
"version": "8.4(4a)"
},
{
"status": "affected",
"version": "8.4(2d)"
},
{
"status": "affected",
"version": "8.4(5)"
},
{
"status": "affected",
"version": "8.2(8)"
},
{
"status": "affected",
"version": "9.3(9)"
},
{
"status": "affected",
"version": "7.3(9)D1(1)"
},
{
"status": "affected",
"version": "8.4(6)"
},
{
"status": "affected",
"version": "8.4(2e)"
},
{
"status": "affected",
"version": "9.3(10)"
},
{
"status": "affected",
"version": "9.2(1a)"
},
{
"status": "affected",
"version": "8.2(9)"
},
{
"status": "affected",
"version": "10.3(1)"
},
{
"status": "affected",
"version": "8.4(7)"
},
{
"status": "affected",
"version": "10.3(2)"
},
{
"status": "affected",
"version": "8.4(6a)"
},
{
"status": "affected",
"version": "9.3(11)"
},
{
"status": "affected",
"version": "10.3(3)"
},
{
"status": "affected",
"version": "9.4(1)"
},
{
"status": "affected",
"version": "9.3(2a)"
},
{
"status": "affected",
"version": "8.4(2f)"
},
{
"status": "affected",
"version": "8.2(10)"
},
{
"status": "affected",
"version": "9.3(12)"
},
{
"status": "affected",
"version": "10.4(1)"
},
{
"status": "affected",
"version": "8.4(8)"
},
{
"status": "affected",
"version": "10.3(99w)"
},
{
"status": "affected",
"version": "10.3(3w)"
},
{
"status": "affected",
"version": "10.3(99x)"
},
{
"status": "affected",
"version": "10.3(3o)"
},
{
"status": "affected",
"version": "8.4(9)"
},
{
"status": "affected",
"version": "10.3(4)"
},
{
"status": "affected",
"version": "10.3(3p)"
},
{
"status": "affected",
"version": "10.3(4a)"
},
{
"status": "affected",
"version": "9.4(1a)"
},
{
"status": "affected",
"version": "10.4(2)"
},
{
"status": "affected",
"version": "10.3(3q)"
},
{
"status": "affected",
"version": "9.3(13)"
},
{
"status": "affected",
"version": "8.2(11)"
},
{
"status": "affected",
"version": "9.4(2)"
},
{
"status": "affected",
"version": "10.3(5)"
},
{
"status": "affected",
"version": "10.4(3)"
},
{
"status": "affected",
"version": "10.3(3x)"
},
{
"status": "affected",
"version": "10.3(4g)"
},
{
"status": "affected",
"version": "10.5(1)"
},
{
"status": "affected",
"version": "8.4(10)"
},
{
"status": "affected",
"version": "9.4(2a)"
},
{
"status": "affected",
"version": "10.3(3r)"
},
{
"status": "affected",
"version": "10.3(6)"
},
{
"status": "affected",
"version": "9.3(14)"
},
{
"status": "affected",
"version": "10.4(4)"
},
{
"status": "affected",
"version": "10.3(4h)"
},
{
"status": "affected",
"version": "10.5(2)"
},
{
"status": "affected",
"version": "10.5(1j)"
},
{
"status": "affected",
"version": "8.4(11)"
},
{
"status": "affected",
"version": "9.4(3)"
},
{
"status": "affected",
"version": "10.3(7)"
},
{
"status": "affected",
"version": "10.4(5)"
},
{
"status": "affected",
"version": "10.5(3)"
},
{
"status": "affected",
"version": "9.3(15)"
},
{
"status": "affected",
"version": "9.4(3a)"
},
{
"status": "affected",
"version": "10.4(4g)"
},
{
"status": "affected",
"version": "10.5(4)"
},
{
"status": "affected",
"version": "9.4(3b)"
},
{
"status": "affected",
"version": "8.4(12)"
},
{
"status": "affected",
"version": "10.6(1)"
},
{
"status": "affected",
"version": "10.5(3t)"
},
{
"status": "affected",
"version": "10.3(8)"
},
{
"status": "affected",
"version": "10.4(6)"
},
{
"status": "affected",
"version": "10.5(3s)"
},
{
"status": "affected",
"version": "10.5(3e)"
},
{
"status": "affected",
"version": "9.4(4)"
},
{
"status": "affected",
"version": "10.5(3o)"
},
{
"status": "affected",
"version": "9.3(16)"
},
{
"status": "affected",
"version": "10.6(1s)"
},
{
"status": "affected",
"version": "10.6(2)"
},
{
"status": "affected",
"version": "10.5(3p)"
},
{
"status": "affected",
"version": "9.4(5)"
},
{
"status": "affected",
"version": "10.3(9)"
},
{
"status": "affected",
"version": "10.6(2s)"
},
{
"status": "affected",
"version": "8.4(13)"
},
{
"status": "affected",
"version": "10.6(3)"
},
{
"status": "affected",
"version": "10.4(7)"
},
{
"status": "affected",
"version": "10.5(5)"
},
{
"status": "affected",
"version": "9.3(17)"
},
{
"status": "affected",
"version": "10.6(2n)"
},
{
"status": "affected",
"version": "10.6(3q)"
},
{
"status": "affected",
"version": "10.6(3o)"
},
{
"status": "affected",
"version": "10.6(3s)"
}
]
},
{
"defaultStatus": "unknown",
"product": "Cisco NX-OS System Software in ACI Mode",
"vendor": "Cisco",
"versions": [
{
"status": "affected",
"version": "15.2(1g)"
},
{
"status": "affected",
"version": "15.2(2e)"
},
{
"status": "affected",
"version": "15.2(2f)"
},
{
"status": "affected",
"version": "15.2(2g)"
},
{
"status": "affected",
"version": "15.2(2h)"
},
{
"status": "affected",
"version": "15.2(3f)"
},
{
"status": "affected",
"version": "15.2(3e)"
},
{
"status": "affected",
"version": "15.2(3g)"
},
{
"status": "affected",
"version": "15.2(4d)"
},
{
"status": "affected",
"version": "15.2(4e)"
},
{
"status": "affected",
"version": "15.2(5c)"
},
{
"status": "affected",
"version": "15.2(5d)"
},
{
"status": "affected",
"version": "16.0(1g)"
},
{
"status": "affected",
"version": "15.2(5e)"
},
{
"status": "affected",
"version": "15.2(4f)"
},
{
"status": "affected",
"version": "15.2(6e)"
},
{
"status": "affected",
"version": "15.2(6h)"
},
{
"status": "affected",
"version": "16.0(1j)"
},
{
"status": "affected",
"version": "15.2(6g)"
},
{
"status": "affected",
"version": "15.2(7f)"
},
{
"status": "affected",
"version": "15.2(7g)"
},
{
"status": "affected",
"version": "16.0(2h)"
},
{
"status": "affected",
"version": "15.2(8d)"
},
{
"status": "affected",
"version": "16.0(2j)"
},
{
"status": "affected",
"version": "15.2(8e)"
},
{
"status": "affected",
"version": "16.0(3d)"
},
{
"status": "affected",
"version": "16.0(3e)"
},
{
"status": "affected",
"version": "15.2(8f)"
},
{
"status": "affected",
"version": "15.2(8g)"
},
{
"status": "affected",
"version": "15.3(1d)"
},
{
"status": "affected",
"version": "15.2(8h)"
},
{
"status": "affected",
"version": "16.0(4c)"
},
{
"status": "affected",
"version": "15.3(2a)"
},
{
"status": "affected",
"version": "15.2(8i)"
},
{
"status": "affected",
"version": "16.0(5h)"
},
{
"status": "affected",
"version": "15.3(2b)"
},
{
"status": "affected",
"version": "16.0(3g)"
},
{
"status": "affected",
"version": "16.0(5j)"
},
{
"status": "affected",
"version": "15.3(2c)"
},
{
"status": "affected",
"version": "16.0(6c)"
},
{
"status": "affected",
"version": "15.3(2d)"
},
{
"status": "affected",
"version": "16.1(1f)"
},
{
"status": "affected",
"version": "16.0(7e)"
},
{
"status": "affected",
"version": "16.0(8e)"
},
{
"status": "affected",
"version": "15.3(2e)"
},
{
"status": "affected",
"version": "16.0(8f)"
},
{
"status": "affected",
"version": "16.1(2f)"
},
{
"status": "affected",
"version": "16.1(2g)"
},
{
"status": "affected",
"version": "15.3(2f)"
},
{
"status": "affected",
"version": "16.0(9c)"
},
{
"status": "affected",
"version": "16.1(3f)"
},
{
"status": "affected",
"version": "16.0(9d)"
},
{
"status": "affected",
"version": "16.0(6h)"
},
{
"status": "affected",
"version": "16.0(8h)"
},
{
"status": "affected",
"version": "16.1(3g)"
},
{
"status": "affected",
"version": "16.0(9e)"
},
{
"status": "affected",
"version": "16.1(4h)"
},
{
"status": "affected",
"version": "16.1(5e)"
},
{
"status": "affected",
"version": "16.2(1g)"
},
{
"status": "affected",
"version": "16.0(9f)"
},
{
"status": "affected",
"version": "16.2(2e)"
}
]
},
{
"defaultStatus": "unknown",
"product": "Cisco Unified Computing System (Managed)",
"vendor": "Cisco",
"versions": [
{
"status": "affected",
"version": "4.0(1a)"
},
{
"status": "affected",
"version": "4.1(1d)"
},
{
"status": "affected",
"version": "4.0(4f)"
},
{
"status": "affected",
"version": "4.0(4c)"
},
{
"status": "affected",
"version": "4.0(2b)"
},
{
"status": "affected",
"version": "4.1(2a)"
},
{
"status": "affected",
"version": "4.0(4a)"
},
{
"status": "affected",
"version": "4.0(4e)"
},
{
"status": "affected",
"version": "4.0(4h)"
},
{
"status": "affected",
"version": "4.0(2a)"
},
{
"status": "affected",
"version": "4.1(1c)"
},
{
"status": "affected",
"version": "4.0(1b)"
},
{
"status": "affected",
"version": "4.1(1e)"
},
{
"status": "affected",
"version": "4.0(4d)"
},
{
"status": "affected",
"version": "4.0(4b)"
},
{
"status": "affected",
"version": "4.0(2e)"
},
{
"status": "affected",
"version": "4.1(1a)"
},
{
"status": "affected",
"version": "4.0(4g)"
},
{
"status": "affected",
"version": "4.0(1d)"
},
{
"status": "affected",
"version": "4.0(1c)"
},
{
"status": "affected",
"version": "4.0(4i)"
},
{
"status": "affected",
"version": "4.0(2d)"
},
{
"status": "affected",
"version": "4.1(1b)"
},
{
"status": "affected",
"version": "4.1(2b)"
},
{
"status": "affected",
"version": "4.0(4k)"
},
{
"status": "affected",
"version": "4.1(3a)"
},
{
"status": "affected",
"version": "4.1(3b)"
},
{
"status": "affected",
"version": "4.1(2c)"
},
{
"status": "affected",
"version": "4.0(4l)"
},
{
"status": "affected",
"version": "4.1(4a)"
},
{
"status": "affected",
"version": "4.1(3c)"
},
{
"status": "affected",
"version": "4.1(3d)"
},
{
"status": "affected",
"version": "4.2(1c)"
},
{
"status": "affected",
"version": "4.2(1d)"
},
{
"status": "affected",
"version": "4.0(4m)"
},
{
"status": "affected",
"version": "4.1(3e)"
},
{
"status": "affected",
"version": "4.2(1f)"
},
{
"status": "affected",
"version": "4.1(3f)"
},
{
"status": "affected",
"version": "4.2(1i)"
},
{
"status": "affected",
"version": "4.1(3h)"
},
{
"status": "affected",
"version": "4.2(1k)"
},
{
"status": "affected",
"version": "4.2(1l)"
},
{
"status": "affected",
"version": "4.0(4n)"
},
{
"status": "affected",
"version": "4.2(1m)"
},
{
"status": "affected",
"version": "4.1(3i)"
},
{
"status": "affected",
"version": "4.2(2a)"
},
{
"status": "affected",
"version": "4.2(1n)"
},
{
"status": "affected",
"version": "4.1(3j)"
},
{
"status": "affected",
"version": "4.2(2c)"
},
{
"status": "affected",
"version": "4.2(2d)"
},
{
"status": "affected",
"version": "4.2(3b)"
},
{
"status": "affected",
"version": "4.1(3k)"
},
{
"status": "affected",
"version": "4.0(4o)"
},
{
"status": "affected",
"version": "4.2(2e)"
},
{
"status": "affected",
"version": "4.2(3d)"
},
{
"status": "affected",
"version": "4.2(3e)"
},
{
"status": "affected",
"version": "4.2(3g)"
},
{
"status": "affected",
"version": "4.1(3l)"
},
{
"status": "affected",
"version": "4.3(2b)"
},
{
"status": "affected",
"version": "4.2(3h)"
},
{
"status": "affected",
"version": "4.2(3i)"
},
{
"status": "affected",
"version": "4.3(2c)"
},
{
"status": "affected",
"version": "4.1(3m)"
},
{
"status": "affected",
"version": "4.3(2e)"
},
{
"status": "affected",
"version": "4.3(3a)"
},
{
"status": "affected",
"version": "4.2(3j)"
},
{
"status": "affected",
"version": "4.3(3c)"
},
{
"status": "affected",
"version": "4.3(4a)"
},
{
"status": "affected",
"version": "4.2(3k)"
},
{
"status": "affected",
"version": "4.3(4b)"
},
{
"status": "affected",
"version": "4.3(4c)"
},
{
"status": "affected",
"version": "4.2(3l)"
},
{
"status": "affected",
"version": "4.3(4d)"
},
{
"status": "affected",
"version": "4.3(2f)"
},
{
"status": "affected",
"version": "4.2(3m)"
},
{
"status": "affected",
"version": "4.3(5a)"
},
{
"status": "affected",
"version": "4.3(4e)"
},
{
"status": "affected",
"version": "4.1(3n)"
},
{
"status": "affected",
"version": "4.3(4f)"
},
{
"status": "affected",
"version": "4.2(3n)"
},
{
"status": "affected",
"version": "4.3(5c)"
},
{
"status": "affected",
"version": "4.2(3o)"
},
{
"status": "affected",
"version": "4.3(5d)"
},
{
"status": "affected",
"version": "4.3(6a)"
},
{
"status": "affected",
"version": "4.3(6b)"
},
{
"status": "affected",
"version": "4.3(5e)"
},
{
"status": "affected",
"version": "4.3(6c)"
},
{
"status": "affected",
"version": "4.2(3p)"
},
{
"status": "affected",
"version": "6.0(1b)"
},
{
"status": "affected",
"version": "6.0(1c)"
},
{
"status": "affected",
"version": "4.3(6d)"
},
{
"status": "affected",
"version": "6.0(1d)"
},
{
"status": "affected",
"version": "6.0(1e)"
},
{
"status": "affected",
"version": "4.3(6e)"
},
{
"status": "affected",
"version": "6.0(1f)"
},
{
"status": "affected",
"version": "4.3(6f)"
},
{
"status": "affected",
"version": "6.0(2b)"
},
{
"status": "affected",
"version": "6.0(1h)"
},
{
"status": "affected",
"version": "4.2(3r)"
},
{
"status": "affected",
"version": "6.0(2c)"
},
{
"status": "affected",
"version": "4.3(6g)"
},
{
"status": "affected",
"version": "6.0(2d)"
},
{
"status": "affected",
"version": "4.3(6h)"
},
{
"status": "affected",
"version": "4.2(3s)"
},
{
"status": "affected",
"version": "4.3(6i)"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "As part of Cisco\u0027s ongoing commitment to proactive security and product quality, the Cisco NX-OS engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities.\r\n\r\nThe vulnerabilities tracked by CVE-2026-76455 are related to improper access control issues that are grouped under the Common Weakness Enumeration (CWE) CWE-284."
}
],
"exploits": [
{
"lang": "en",
"value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "cvssV3_1"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-284",
"description": "Improper Access Control",
"lang": "en",
"type": "cwe"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-07T16:15:27.008Z",
"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"shortName": "cisco"
},
"references": [
{
"name": "cisco-sa-hardening-nxosw1-cWzSbtR",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-nxosw1-cWzSbtR"
}
],
"source": {
"advisory": "cisco-sa-hardening-nxosw1-cWzSbtR",
"defects": [
"CSCwu46198"
],
"discovery": "INTERNAL"
},
"title": "Cisco NX-OS Software Security Hardening Release: October 2026 - Improper Access Control Vulnerabilities"
}
},
"cveMetadata": {
"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"assignerShortName": "cisco",
"cveId": "CVE-2026-76455",
"datePublished": "2026-10-07T16:15:27.008Z",
"dateReserved": "2026-08-19T12:02:03.636Z",
"dateUpdated": "2026-10-08T03:55:52.070Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-76455",
"date": "2026-10-08",
"epss": "0.00284",
"percentile": "0.19166"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unknown",
"product": "Cisco NX-OS Software",
"vendor": "Cisco",
"versions": [
{
"status": "affected",
"version": "8.2(5)"
},
{
"status": "affected",
"version": "7.3(5)D1(1)"
},
{
"status": "affected",
"version": "8.4(2)"
},
{
"status": "affected",
"version": "8.4(3)"
},
{
"status": "affected",
"version": "9.2(3)"
},
{
"status": "affected",
"version": "8.2(1)"
},
{
"status": "affected",
"version": "7.3(1)D1(1)"
},
{
"status": "affected",
"version": "9.2(2v)"
},
{
"status": "affected",
"version": "7.3(0)D1(1)"
},
{
"status": "affected",
"version": "7.3(4)D1(1)"
},
{
"status": "affected",
"version": "9.2(1)"
},
{
"status": "affected",
"version": "9.2(2t)"
},
{
"status": "affected",
"version": "9.2(3y)"
},
{
"status": "affected",
"version": "9.3(2)"
},
{
"status": "affected",
"version": "7.3(1)DY(1)"
},
{
"status": "affected",
"version": "8.1(1)"
},
{
"status": "affected",
"version": "8.2(2)"
},
{
"status": "affected",
"version": "8.3(2)"
},
{
"status": "affected",
"version": "7.3(2)D1(3a)"
},
{
"status": "affected",
"version": "9.2(4)"
},
{
"status": "affected",
"version": "8.1(2)"
},
{
"status": "affected",
"version": "7.3(3)D1(1)"
},
{
"status": "affected",
"version": "8.2(3)"
},
{
"status": "affected",
"version": "8.3(1)"
},
{
"status": "affected",
"version": "8.4(1)"
},
{
"status": "affected",
"version": "8.1(1b)"
},
{
"status": "affected",
"version": "7.3(0)DX(1)"
},
{
"status": "affected",
"version": "7.3(2)D1(1)"
},
{
"status": "affected",
"version": "9.3(1)"
},
{
"status": "affected",
"version": "7.3(2)D1(2)"
},
{
"status": "affected",
"version": "8.2(4)"
},
{
"status": "affected",
"version": "7.3(0)DY(1)"
},
{
"status": "affected",
"version": "9.3(1z)"
},
{
"status": "affected",
"version": "9.2(2)"
},
{
"status": "affected",
"version": "8.1(2a)"
},
{
"status": "affected",
"version": "7.3(2)D1(3)"
},
{
"status": "affected",
"version": "8.1(1a)"
},
{
"status": "affected",
"version": "8.4(1a)"
},
{
"status": "affected",
"version": "9.3(3)"
},
{
"status": "affected",
"version": "7.3(2)D1(1d)"
},
{
"status": "affected",
"version": "9.3(4)"
},
{
"status": "affected",
"version": "7.3(6)D1(1)"
},
{
"status": "affected",
"version": "8.2(6)"
},
{
"status": "affected",
"version": "9.3(5)"
},
{
"status": "affected",
"version": "8.4(2a)"
},
{
"status": "affected",
"version": "8.4(2b)"
},
{
"status": "affected",
"version": "8.5(1)"
},
{
"status": "affected",
"version": "9.3(6)"
},
{
"status": "affected",
"version": "8.4(4)"
},
{
"status": "affected",
"version": "7.3(7)D1(1)"
},
{
"status": "affected",
"version": "8.4(2c)"
},
{
"status": "affected",
"version": "9.3(5w)"
},
{
"status": "affected",
"version": "8.2(7)"
},
{
"status": "affected",
"version": "9.3(7)"
},
{
"status": "affected",
"version": "9.3(7k)"
},
{
"status": "affected",
"version": "7.3(8)D1(1)"
},
{
"status": "affected",
"version": "9.3(7a)"
},
{
"status": "affected",
"version": "8.2(7a)"
},
{
"status": "affected",
"version": "9.3(8)"
},
{
"status": "affected",
"version": "8.4(4a)"
},
{
"status": "affected",
"version": "8.4(2d)"
},
{
"status": "affected",
"version": "8.4(5)"
},
{
"status": "affected",
"version": "8.2(8)"
},
{
"status": "affected",
"version": "9.3(9)"
},
{
"status": "affected",
"version": "7.3(9)D1(1)"
},
{
"status": "affected",
"version": "8.4(6)"
},
{
"status": "affected",
"version": "8.4(2e)"
},
{
"status": "affected",
"version": "9.3(10)"
},
{
"status": "affected",
"version": "9.2(1a)"
},
{
"status": "affected",
"version": "8.2(9)"
},
{
"status": "affected",
"version": "10.3(1)"
},
{
"status": "affected",
"version": "8.4(7)"
},
{
"status": "affected",
"version": "10.3(2)"
},
{
"status": "affected",
"version": "8.4(6a)"
},
{
"status": "affected",
"version": "9.3(11)"
},
{
"status": "affected",
"version": "10.3(3)"
},
{
"status": "affected",
"version": "9.4(1)"
},
{
"status": "affected",
"version": "9.3(2a)"
},
{
"status": "affected",
"version": "8.4(2f)"
},
{
"status": "affected",
"version": "8.2(10)"
},
{
"status": "affected",
"version": "9.3(12)"
},
{
"status": "affected",
"version": "10.4(1)"
},
{
"status": "affected",
"version": "8.4(8)"
},
{
"status": "affected",
"version": "10.3(99w)"
},
{
"status": "affected",
"version": "10.3(3w)"
},
{
"status": "affected",
"version": "10.3(99x)"
},
{
"status": "affected",
"version": "10.3(3o)"
},
{
"status": "affected",
"version": "8.4(9)"
},
{
"status": "affected",
"version": "10.3(4)"
},
{
"status": "affected",
"version": "10.3(3p)"
},
{
"status": "affected",
"version": "10.3(4a)"
},
{
"status": "affected",
"version": "9.4(1a)"
},
{
"status": "affected",
"version": "10.4(2)"
},
{
"status": "affected",
"version": "10.3(3q)"
},
{
"status": "affected",
"version": "9.3(13)"
},
{
"status": "affected",
"version": "8.2(11)"
},
{
"status": "affected",
"version": "9.4(2)"
},
{
"status": "affected",
"version": "10.3(5)"
},
{
"status": "affected",
"version": "10.4(3)"
},
{
"status": "affected",
"version": "10.3(3x)"
},
{
"status": "affected",
"version": "10.3(4g)"
},
{
"status": "affected",
"version": "10.5(1)"
},
{
"status": "affected",
"version": "8.4(10)"
},
{
"status": "affected",
"version": "9.4(2a)"
},
{
"status": "affected",
"version": "10.3(3r)"
},
{
"status": "affected",
"version": "10.3(6)"
},
{
"status": "affected",
"version": "9.3(14)"
},
{
"status": "affected",
"version": "10.4(4)"
},
{
"status": "affected",
"version": "10.3(4h)"
},
{
"status": "affected",
"version": "10.5(2)"
},
{
"status": "affected",
"version": "10.5(1j)"
},
{
"status": "affected",
"version": "8.4(11)"
},
{
"status": "affected",
"version": "9.4(3)"
},
{
"status": "affected",
"version": "10.3(7)"
},
{
"status": "affected",
"version": "10.4(5)"
},
{
"status": "affected",
"version": "10.5(3)"
},
{
"status": "affected",
"version": "9.3(15)"
},
{
"status": "affected",
"version": "9.4(3a)"
},
{
"status": "affected",
"version": "10.4(4g)"
},
{
"status": "affected",
"version": "10.5(4)"
},
{
"status": "affected",
"version": "9.4(3b)"
},
{
"status": "affected",
"version": "8.4(12)"
},
{
"status": "affected",
"version": "10.6(1)"
},
{
"status": "affected",
"version": "10.5(3t)"
},
{
"status": "affected",
"version": "10.3(8)"
},
{
"status": "affected",
"version": "10.4(6)"
},
{
"status": "affected",
"version": "10.5(3s)"
},
{
"status": "affected",
"version": "10.5(3e)"
},
{
"status": "affected",
"version": "9.4(4)"
},
{
"status": "affected",
"version": "10.5(3o)"
},
{
"status": "affected",
"version": "9.3(16)"
},
{
"status": "affected",
"version": "10.6(1s)"
},
{
"status": "affected",
"version": "10.6(2)"
},
{
"status": "affected",
"version": "10.5(3p)"
},
{
"status": "affected",
"version": "9.4(5)"
},
{
"status": "affected",
"version": "10.3(9)"
},
{
"status": "affected",
"version": "10.6(2s)"
},
{
"status": "affected",
"version": "8.4(13)"
},
{
"status": "affected",
"version": "10.6(3)"
},
{
"status": "affected",
"version": "10.4(7)"
},
{
"status": "affected",
"version": "10.5(5)"
},
{
"status": "affected",
"version": "9.3(17)"
},
{
"status": "affected",
"version": "10.6(2n)"
},
{
"status": "affected",
"version": "10.6(3q)"
},
{
"status": "affected",
"version": "10.6(3o)"
},
{
"status": "affected",
"version": "10.6(3s)"
}
]
},
{
"defaultStatus": "unknown",
"product": "Cisco NX-OS System Software in ACI Mode",
"vendor": "Cisco",
"versions": [
{
"status": "affected",
"version": "15.2(1g)"
},
{
"status": "affected",
"version": "15.2(2e)"
},
{
"status": "affected",
"version": "15.2(2f)"
},
{
"status": "affected",
"version": "15.2(2g)"
},
{
"status": "affected",
"version": "15.2(2h)"
},
{
"status": "affected",
"version": "15.2(3f)"
},
{
"status": "affected",
"version": "15.2(3e)"
},
{
"status": "affected",
"version": "15.2(3g)"
},
{
"status": "affected",
"version": "15.2(4d)"
},
{
"status": "affected",
"version": "15.2(4e)"
},
{
"status": "affected",
"version": "15.2(5c)"
},
{
"status": "affected",
"version": "15.2(5d)"
},
{
"status": "affected",
"version": "16.0(1g)"
},
{
"status": "affected",
"version": "15.2(5e)"
},
{
"status": "affected",
"version": "15.2(4f)"
},
{
"status": "affected",
"version": "15.2(6e)"
},
{
"status": "affected",
"version": "15.2(6h)"
},
{
"status": "affected",
"version": "16.0(1j)"
},
{
"status": "affected",
"version": "15.2(6g)"
},
{
"status": "affected",
"version": "15.2(7f)"
},
{
"status": "affected",
"version": "15.2(7g)"
},
{
"status": "affected",
"version": "16.0(2h)"
},
{
"status": "affected",
"version": "15.2(8d)"
},
{
"status": "affected",
"version": "16.0(2j)"
},
{
"status": "affected",
"version": "15.2(8e)"
},
{
"status": "affected",
"version": "16.0(3d)"
},
{
"status": "affected",
"version": "16.0(3e)"
},
{
"status": "affected",
"version": "15.2(8f)"
},
{
"status": "affected",
"version": "15.2(8g)"
},
{
"status": "affected",
"version": "15.3(1d)"
},
{
"status": "affected",
"version": "15.2(8h)"
},
{
"status": "affected",
"version": "16.0(4c)"
},
{
"status": "affected",
"version": "15.3(2a)"
},
{
"status": "affected",
"version": "15.2(8i)"
},
{
"status": "affected",
"version": "16.0(5h)"
},
{
"status": "affected",
"version": "15.3(2b)"
},
{
"status": "affected",
"version": "16.0(3g)"
},
{
"status": "affected",
"version": "16.0(5j)"
},
{
"status": "affected",
"version": "15.3(2c)"
},
{
"status": "affected",
"version": "16.0(6c)"
},
{
"status": "affected",
"version": "15.3(2d)"
},
{
"status": "affected",
"version": "16.1(1f)"
},
{
"status": "affected",
"version": "16.0(7e)"
},
{
"status": "affected",
"version": "16.0(8e)"
},
{
"status": "affected",
"version": "15.3(2e)"
},
{
"status": "affected",
"version": "16.0(8f)"
},
{
"status": "affected",
"version": "16.1(2f)"
},
{
"status": "affected",
"version": "16.1(2g)"
},
{
"status": "affected",
"version": "15.3(2f)"
},
{
"status": "affected",
"version": "16.0(9c)"
},
{
"status": "affected",
"version": "16.1(3f)"
},
{
"status": "affected",
"version": "16.0(9d)"
},
{
"status": "affected",
"version": "16.0(6h)"
},
{
"status": "affected",
"version": "16.0(8h)"
},
{
"status": "affected",
"version": "16.1(3g)"
},
{
"status": "affected",
"version": "16.0(9e)"
},
{
"status": "affected",
"version": "16.1(4h)"
},
{
"status": "affected",
"version": "16.1(5e)"
},
{
"status": "affected",
"version": "16.2(1g)"
},
{
"status": "affected",
"version": "16.0(9f)"
},
{
"status": "affected",
"version": "16.2(2e)"
}
]
},
{
"defaultStatus": "unknown",
"product": "Cisco Unified Computing System (Managed)",
"vendor": "Cisco",
"versions": [
{
"status": "affected",
"version": "4.0(1a)"
},
{
"status": "affected",
"version": "4.1(1d)"
},
{
"status": "affected",
"version": "4.0(4f)"
},
{
"status": "affected",
"version": "4.0(4c)"
},
{
"status": "affected",
"version": "4.0(2b)"
},
{
"status": "affected",
"version": "4.1(2a)"
},
{
"status": "affected",
"version": "4.0(4a)"
},
{
"status": "affected",
"version": "4.0(4e)"
},
{
"status": "affected",
"version": "4.0(4h)"
},
{
"status": "affected",
"version": "4.0(2a)"
},
{
"status": "affected",
"version": "4.1(1c)"
},
{
"status": "affected",
"version": "4.0(1b)"
},
{
"status": "affected",
"version": "4.1(1e)"
},
{
"status": "affected",
"version": "4.0(4d)"
},
{
"status": "affected",
"version": "4.0(4b)"
},
{
"status": "affected",
"version": "4.0(2e)"
},
{
"status": "affected",
"version": "4.1(1a)"
},
{
"status": "affected",
"version": "4.0(4g)"
},
{
"status": "affected",
"version": "4.0(1d)"
},
{
"status": "affected",
"version": "4.0(1c)"
},
{
"status": "affected",
"version": "4.0(4i)"
},
{
"status": "affected",
"version": "4.0(2d)"
},
{
"status": "affected",
"version": "4.1(1b)"
},
{
"status": "affected",
"version": "4.1(2b)"
},
{
"status": "affected",
"version": "4.0(4k)"
},
{
"status": "affected",
"version": "4.1(3a)"
},
{
"status": "affected",
"version": "4.1(3b)"
},
{
"status": "affected",
"version": "4.1(2c)"
},
{
"status": "affected",
"version": "4.0(4l)"
},
{
"status": "affected",
"version": "4.1(4a)"
},
{
"status": "affected",
"version": "4.1(3c)"
},
{
"status": "affected",
"version": "4.1(3d)"
},
{
"status": "affected",
"version": "4.2(1c)"
},
{
"status": "affected",
"version": "4.2(1d)"
},
{
"status": "affected",
"version": "4.0(4m)"
},
{
"status": "affected",
"version": "4.1(3e)"
},
{
"status": "affected",
"version": "4.2(1f)"
},
{
"status": "affected",
"version": "4.1(3f)"
},
{
"status": "affected",
"version": "4.2(1i)"
},
{
"status": "affected",
"version": "4.1(3h)"
},
{
"status": "affected",
"version": "4.2(1k)"
},
{
"status": "affected",
"version": "4.2(1l)"
},
{
"status": "affected",
"version": "4.0(4n)"
},
{
"status": "affected",
"version": "4.2(1m)"
},
{
"status": "affected",
"version": "4.1(3i)"
},
{
"status": "affected",
"version": "4.2(2a)"
},
{
"status": "affected",
"version": "4.2(1n)"
},
{
"status": "affected",
"version": "4.1(3j)"
},
{
"status": "affected",
"version": "4.2(2c)"
},
{
"status": "affected",
"version": "4.2(2d)"
},
{
"status": "affected",
"version": "4.2(3b)"
},
{
"status": "affected",
"version": "4.1(3k)"
},
{
"status": "affected",
"version": "4.0(4o)"
},
{
"status": "affected",
"version": "4.2(2e)"
},
{
"status": "affected",
"version": "4.2(3d)"
},
{
"status": "affected",
"version": "4.2(3e)"
},
{
"status": "affected",
"version": "4.2(3g)"
},
{
"status": "affected",
"version": "4.1(3l)"
},
{
"status": "affected",
"version": "4.3(2b)"
},
{
"status": "affected",
"version": "4.2(3h)"
},
{
"status": "affected",
"version": "4.2(3i)"
},
{
"status": "affected",
"version": "4.3(2c)"
},
{
"status": "affected",
"version": "4.1(3m)"
},
{
"status": "affected",
"version": "4.3(2e)"
},
{
"status": "affected",
"version": "4.3(3a)"
},
{
"status": "affected",
"version": "4.2(3j)"
},
{
"status": "affected",
"version": "4.3(3c)"
},
{
"status": "affected",
"version": "4.3(4a)"
},
{
"status": "affected",
"version": "4.2(3k)"
},
{
"status": "affected",
"version": "4.3(4b)"
},
{
"status": "affected",
"version": "4.3(4c)"
},
{
"status": "affected",
"version": "4.2(3l)"
},
{
"status": "affected",
"version": "4.3(4d)"
},
{
"status": "affected",
"version": "4.3(2f)"
},
{
"status": "affected",
"version": "4.2(3m)"
},
{
"status": "affected",
"version": "4.3(5a)"
},
{
"status": "affected",
"version": "4.3(4e)"
},
{
"status": "affected",
"version": "4.1(3n)"
},
{
"status": "affected",
"version": "4.3(4f)"
},
{
"status": "affected",
"version": "4.2(3n)"
},
{
"status": "affected",
"version": "4.3(5c)"
},
{
"status": "affected",
"version": "4.2(3o)"
},
{
"status": "affected",
"version": "4.3(5d)"
},
{
"status": "affected",
"version": "4.3(6a)"
},
{
"status": "affected",
"version": "4.3(6b)"
},
{
"status": "affected",
"version": "4.3(5e)"
},
{
"status": "affected",
"version": "4.3(6c)"
},
{
"status": "affected",
"version": "4.2(3p)"
},
{
"status": "affected",
"version": "6.0(1b)"
},
{
"status": "affected",
"version": "6.0(1c)"
},
{
"status": "affected",
"version": "4.3(6d)"
},
{
"status": "affected",
"version": "6.0(1d)"
},
{
"status": "affected",
"version": "6.0(1e)"
},
{
"status": "affected",
"version": "4.3(6e)"
},
{
"status": "affected",
"version": "6.0(1f)"
},
{
"status": "affected",
"version": "4.3(6f)"
},
{
"status": "affected",
"version": "6.0(2b)"
},
{
"status": "affected",
"version": "6.0(1h)"
},
{
"status": "affected",
"version": "4.2(3r)"
},
{
"status": "affected",
"version": "6.0(2c)"
},
{
"status": "affected",
"version": "4.3(6g)"
},
{
"status": "affected",
"version": "6.0(2d)"
},
{
"status": "affected",
"version": "4.3(6h)"
},
{
"status": "affected",
"version": "4.2(3s)"
},
{
"status": "affected",
"version": "4.3(6i)"
}
]
}
],
"source": "psirt@cisco.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "As part of Cisco\u0027s ongoing commitment to proactive security and product quality, the Cisco NX-OS engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities.\r\n\r\nThe vulnerabilities tracked by CVE-2026-76455 are related to improper access control issues that are grouped under the Common Weakness Enumeration (CWE) CWE-284."
}
],
"id": "CVE-2026-76455",
"lastModified": "2026-10-08T04:17:32.710",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "psirt@cisco.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-76455",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-07T00:00:00+00:00",
"version": "2.0.3"
}
}
]
},
"published": "2026-10-07T17:16:57.520",
"references": [
{
"source": "psirt@cisco.com",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-nxosw1-cWzSbtR"
}
],
"sourceIdentifier": "psirt@cisco.com",
"vulnStatus": "Received",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-284"
}
],
"source": "psirt@cisco.com",
"type": "Secondary"
}
]
}
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-76455",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-07T19:11:55.350575Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-07T19:18:50.937Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"product": "Cisco NX-OS Software",
"vendor": "Cisco",
"versions": [
{
"status": "affected",
"version": "8.2(5)"
},
{
"status": "affected",
"version": "7.3(5)D1(1)"
},
{
"status": "affected",
"version": "8.4(2)"
},
{
"status": "affected",
"version": "8.4(3)"
},
{
"status": "affected",
"version": "9.2(3)"
},
{
"status": "affected",
"version": "8.2(1)"
},
{
"status": "affected",
"version": "7.3(1)D1(1)"
},
{
"status": "affected",
"version": "9.2(2v)"
},
{
"status": "affected",
"version": "7.3(0)D1(1)"
},
{
"status": "affected",
"version": "7.3(4)D1(1)"
},
{
"status": "affected",
"version": "9.2(1)"
},
{
"status": "affected",
"version": "9.2(2t)"
},
{
"status": "affected",
"version": "9.2(3y)"
},
{
"status": "affected",
"version": "9.3(2)"
},
{
"status": "affected",
"version": "7.3(1)DY(1)"
},
{
"status": "affected",
"version": "8.1(1)"
},
{
"status": "affected",
"version": "8.2(2)"
},
{
"status": "affected",
"version": "8.3(2)"
},
{
"status": "affected",
"version": "7.3(2)D1(3a)"
},
{
"status": "affected",
"version": "9.2(4)"
},
{
"status": "affected",
"version": "8.1(2)"
},
{
"status": "affected",
"version": "7.3(3)D1(1)"
},
{
"status": "affected",
"version": "8.2(3)"
},
{
"status": "affected",
"version": "8.3(1)"
},
{
"status": "affected",
"version": "8.4(1)"
},
{
"status": "affected",
"version": "8.1(1b)"
},
{
"status": "affected",
"version": "7.3(0)DX(1)"
},
{
"status": "affected",
"version": "7.3(2)D1(1)"
},
{
"status": "affected",
"version": "9.3(1)"
},
{
"status": "affected",
"version": "7.3(2)D1(2)"
},
{
"status": "affected",
"version": "8.2(4)"
},
{
"status": "affected",
"version": "7.3(0)DY(1)"
},
{
"status": "affected",
"version": "9.3(1z)"
},
{
"status": "affected",
"version": "9.2(2)"
},
{
"status": "affected",
"version": "8.1(2a)"
},
{
"status": "affected",
"version": "7.3(2)D1(3)"
},
{
"status": "affected",
"version": "8.1(1a)"
},
{
"status": "affected",
"version": "8.4(1a)"
},
{
"status": "affected",
"version": "9.3(3)"
},
{
"status": "affected",
"version": "7.3(2)D1(1d)"
},
{
"status": "affected",
"version": "9.3(4)"
},
{
"status": "affected",
"version": "7.3(6)D1(1)"
},
{
"status": "affected",
"version": "8.2(6)"
},
{
"status": "affected",
"version": "9.3(5)"
},
{
"status": "affected",
"version": "8.4(2a)"
},
{
"status": "affected",
"version": "8.4(2b)"
},
{
"status": "affected",
"version": "8.5(1)"
},
{
"status": "affected",
"version": "9.3(6)"
},
{
"status": "affected",
"version": "8.4(4)"
},
{
"status": "affected",
"version": "7.3(7)D1(1)"
},
{
"status": "affected",
"version": "8.4(2c)"
},
{
"status": "affected",
"version": "9.3(5w)"
},
{
"status": "affected",
"version": "8.2(7)"
},
{
"status": "affected",
"version": "9.3(7)"
},
{
"status": "affected",
"version": "9.3(7k)"
},
{
"status": "affected",
"version": "7.3(8)D1(1)"
},
{
"status": "affected",
"version": "9.3(7a)"
},
{
"status": "affected",
"version": "8.2(7a)"
},
{
"status": "affected",
"version": "9.3(8)"
},
{
"status": "affected",
"version": "8.4(4a)"
},
{
"status": "affected",
"version": "8.4(2d)"
},
{
"status": "affected",
"version": "8.4(5)"
},
{
"status": "affected",
"version": "8.2(8)"
},
{
"status": "affected",
"version": "9.3(9)"
},
{
"status": "affected",
"version": "7.3(9)D1(1)"
},
{
"status": "affected",
"version": "8.4(6)"
},
{
"status": "affected",
"version": "8.4(2e)"
},
{
"status": "affected",
"version": "9.3(10)"
},
{
"status": "affected",
"version": "9.2(1a)"
},
{
"status": "affected",
"version": "8.2(9)"
},
{
"status": "affected",
"version": "10.3(1)"
},
{
"status": "affected",
"version": "8.4(7)"
},
{
"status": "affected",
"version": "10.3(2)"
},
{
"status": "affected",
"version": "8.4(6a)"
},
{
"status": "affected",
"version": "9.3(11)"
},
{
"status": "affected",
"version": "10.3(3)"
},
{
"status": "affected",
"version": "9.4(1)"
},
{
"status": "affected",
"version": "9.3(2a)"
},
{
"status": "affected",
"version": "8.4(2f)"
},
{
"status": "affected",
"version": "8.2(10)"
},
{
"status": "affected",
"version": "9.3(12)"
},
{
"status": "affected",
"version": "10.4(1)"
},
{
"status": "affected",
"version": "8.4(8)"
},
{
"status": "affected",
"version": "10.3(99w)"
},
{
"status": "affected",
"version": "10.3(3w)"
},
{
"status": "affected",
"version": "10.3(99x)"
},
{
"status": "affected",
"version": "10.3(3o)"
},
{
"status": "affected",
"version": "8.4(9)"
},
{
"status": "affected",
"version": "10.3(4)"
},
{
"status": "affected",
"version": "10.3(3p)"
},
{
"status": "affected",
"version": "10.3(4a)"
},
{
"status": "affected",
"version": "9.4(1a)"
},
{
"status": "affected",
"version": "10.4(2)"
},
{
"status": "affected",
"version": "10.3(3q)"
},
{
"status": "affected",
"version": "9.3(13)"
},
{
"status": "affected",
"version": "8.2(11)"
},
{
"status": "affected",
"version": "9.4(2)"
},
{
"status": "affected",
"version": "10.3(5)"
},
{
"status": "affected",
"version": "10.4(3)"
},
{
"status": "affected",
"version": "10.3(3x)"
},
{
"status": "affected",
"version": "10.3(4g)"
},
{
"status": "affected",
"version": "10.5(1)"
},
{
"status": "affected",
"version": "8.4(10)"
},
{
"status": "affected",
"version": "9.4(2a)"
},
{
"status": "affected",
"version": "10.3(3r)"
},
{
"status": "affected",
"version": "10.3(6)"
},
{
"status": "affected",
"version": "9.3(14)"
},
{
"status": "affected",
"version": "10.4(4)"
},
{
"status": "affected",
"version": "10.3(4h)"
},
{
"status": "affected",
"version": "10.5(2)"
},
{
"status": "affected",
"version": "10.5(1j)"
},
{
"status": "affected",
"version": "8.4(11)"
},
{
"status": "affected",
"version": "9.4(3)"
},
{
"status": "affected",
"version": "10.3(7)"
},
{
"status": "affected",
"version": "10.4(5)"
},
{
"status": "affected",
"version": "10.5(3)"
},
{
"status": "affected",
"version": "9.3(15)"
},
{
"status": "affected",
"version": "9.4(3a)"
},
{
"status": "affected",
"version": "10.4(4g)"
},
{
"status": "affected",
"version": "10.5(4)"
},
{
"status": "affected",
"version": "9.4(3b)"
},
{
"status": "affected",
"version": "8.4(12)"
},
{
"status": "affected",
"version": "10.6(1)"
},
{
"status": "affected",
"version": "10.5(3t)"
},
{
"status": "affected",
"version": "10.3(8)"
},
{
"status": "affected",
"version": "10.4(6)"
},
{
"status": "affected",
"version": "10.5(3s)"
},
{
"status": "affected",
"version": "10.5(3e)"
},
{
"status": "affected",
"version": "9.4(4)"
},
{
"status": "affected",
"version": "10.5(3o)"
},
{
"status": "affected",
"version": "9.3(16)"
},
{
"status": "affected",
"version": "10.6(1s)"
},
{
"status": "affected",
"version": "10.6(2)"
},
{
"status": "affected",
"version": "10.5(3p)"
},
{
"status": "affected",
"version": "9.4(5)"
},
{
"status": "affected",
"version": "10.3(9)"
},
{
"status": "affected",
"version": "10.6(2s)"
},
{
"status": "affected",
"version": "8.4(13)"
},
{
"status": "affected",
"version": "10.6(3)"
},
{
"status": "affected",
"version": "10.4(7)"
},
{
"status": "affected",
"version": "10.5(5)"
},
{
"status": "affected",
"version": "9.3(17)"
},
{
"status": "affected",
"version": "10.6(2n)"
},
{
"status": "affected",
"version": "10.6(3q)"
},
{
"status": "affected",
"version": "10.6(3o)"
},
{
"status": "affected",
"version": "10.6(3s)"
}
]
},
{
"defaultStatus": "unknown",
"product": "Cisco NX-OS System Software in ACI Mode",
"vendor": "Cisco",
"versions": [
{
"status": "affected",
"version": "15.2(1g)"
},
{
"status": "affected",
"version": "15.2(2e)"
},
{
"status": "affected",
"version": "15.2(2f)"
},
{
"status": "affected",
"version": "15.2(2g)"
},
{
"status": "affected",
"version": "15.2(2h)"
},
{
"status": "affected",
"version": "15.2(3f)"
},
{
"status": "affected",
"version": "15.2(3e)"
},
{
"status": "affected",
"version": "15.2(3g)"
},
{
"status": "affected",
"version": "15.2(4d)"
},
{
"status": "affected",
"version": "15.2(4e)"
},
{
"status": "affected",
"version": "15.2(5c)"
},
{
"status": "affected",
"version": "15.2(5d)"
},
{
"status": "affected",
"version": "16.0(1g)"
},
{
"status": "affected",
"version": "15.2(5e)"
},
{
"status": "affected",
"version": "15.2(4f)"
},
{
"status": "affected",
"version": "15.2(6e)"
},
{
"status": "affected",
"version": "15.2(6h)"
},
{
"status": "affected",
"version": "16.0(1j)"
},
{
"status": "affected",
"version": "15.2(6g)"
},
{
"status": "affected",
"version": "15.2(7f)"
},
{
"status": "affected",
"version": "15.2(7g)"
},
{
"status": "affected",
"version": "16.0(2h)"
},
{
"status": "affected",
"version": "15.2(8d)"
},
{
"status": "affected",
"version": "16.0(2j)"
},
{
"status": "affected",
"version": "15.2(8e)"
},
{
"status": "affected",
"version": "16.0(3d)"
},
{
"status": "affected",
"version": "16.0(3e)"
},
{
"status": "affected",
"version": "15.2(8f)"
},
{
"status": "affected",
"version": "15.2(8g)"
},
{
"status": "affected",
"version": "15.3(1d)"
},
{
"status": "affected",
"version": "15.2(8h)"
},
{
"status": "affected",
"version": "16.0(4c)"
},
{
"status": "affected",
"version": "15.3(2a)"
},
{
"status": "affected",
"version": "15.2(8i)"
},
{
"status": "affected",
"version": "16.0(5h)"
},
{
"status": "affected",
"version": "15.3(2b)"
},
{
"status": "affected",
"version": "16.0(3g)"
},
{
"status": "affected",
"version": "16.0(5j)"
},
{
"status": "affected",
"version": "15.3(2c)"
},
{
"status": "affected",
"version": "16.0(6c)"
},
{
"status": "affected",
"version": "15.3(2d)"
},
{
"status": "affected",
"version": "16.1(1f)"
},
{
"status": "affected",
"version": "16.0(7e)"
},
{
"status": "affected",
"version": "16.0(8e)"
},
{
"status": "affected",
"version": "15.3(2e)"
},
{
"status": "affected",
"version": "16.0(8f)"
},
{
"status": "affected",
"version": "16.1(2f)"
},
{
"status": "affected",
"version": "16.1(2g)"
},
{
"status": "affected",
"version": "15.3(2f)"
},
{
"status": "affected",
"version": "16.0(9c)"
},
{
"status": "affected",
"version": "16.1(3f)"
},
{
"status": "affected",
"version": "16.0(9d)"
},
{
"status": "affected",
"version": "16.0(6h)"
},
{
"status": "affected",
"version": "16.0(8h)"
},
{
"status": "affected",
"version": "16.1(3g)"
},
{
"status": "affected",
"version": "16.0(9e)"
},
{
"status": "affected",
"version": "16.1(4h)"
},
{
"status": "affected",
"version": "16.1(5e)"
},
{
"status": "affected",
"version": "16.2(1g)"
},
{
"status": "affected",
"version": "16.0(9f)"
},
{
"status": "affected",
"version": "16.2(2e)"
}
]
},
{
"defaultStatus": "unknown",
"product": "Cisco Unified Computing System (Managed)",
"vendor": "Cisco",
"versions": [
{
"status": "affected",
"version": "4.0(1a)"
},
{
"status": "affected",
"version": "4.1(1d)"
},
{
"status": "affected",
"version": "4.0(4f)"
},
{
"status": "affected",
"version": "4.0(4c)"
},
{
"status": "affected",
"version": "4.0(2b)"
},
{
"status": "affected",
"version": "4.1(2a)"
},
{
"status": "affected",
"version": "4.0(4a)"
},
{
"status": "affected",
"version": "4.0(4e)"
},
{
"status": "affected",
"version": "4.0(4h)"
},
{
"status": "affected",
"version": "4.0(2a)"
},
{
"status": "affected",
"version": "4.1(1c)"
},
{
"status": "affected",
"version": "4.0(1b)"
},
{
"status": "affected",
"version": "4.1(1e)"
},
{
"status": "affected",
"version": "4.0(4d)"
},
{
"status": "affected",
"version": "4.0(4b)"
},
{
"status": "affected",
"version": "4.0(2e)"
},
{
"status": "affected",
"version": "4.1(1a)"
},
{
"status": "affected",
"version": "4.0(4g)"
},
{
"status": "affected",
"version": "4.0(1d)"
},
{
"status": "affected",
"version": "4.0(1c)"
},
{
"status": "affected",
"version": "4.0(4i)"
},
{
"status": "affected",
"version": "4.0(2d)"
},
{
"status": "affected",
"version": "4.1(1b)"
},
{
"status": "affected",
"version": "4.1(2b)"
},
{
"status": "affected",
"version": "4.0(4k)"
},
{
"status": "affected",
"version": "4.1(3a)"
},
{
"status": "affected",
"version": "4.1(3b)"
},
{
"status": "affected",
"version": "4.1(2c)"
},
{
"status": "affected",
"version": "4.0(4l)"
},
{
"status": "affected",
"version": "4.1(4a)"
},
{
"status": "affected",
"version": "4.1(3c)"
},
{
"status": "affected",
"version": "4.1(3d)"
},
{
"status": "affected",
"version": "4.2(1c)"
},
{
"status": "affected",
"version": "4.2(1d)"
},
{
"status": "affected",
"version": "4.0(4m)"
},
{
"status": "affected",
"version": "4.1(3e)"
},
{
"status": "affected",
"version": "4.2(1f)"
},
{
"status": "affected",
"version": "4.1(3f)"
},
{
"status": "affected",
"version": "4.2(1i)"
},
{
"status": "affected",
"version": "4.1(3h)"
},
{
"status": "affected",
"version": "4.2(1k)"
},
{
"status": "affected",
"version": "4.2(1l)"
},
{
"status": "affected",
"version": "4.0(4n)"
},
{
"status": "affected",
"version": "4.2(1m)"
},
{
"status": "affected",
"version": "4.1(3i)"
},
{
"status": "affected",
"version": "4.2(2a)"
},
{
"status": "affected",
"version": "4.2(1n)"
},
{
"status": "affected",
"version": "4.1(3j)"
},
{
"status": "affected",
"version": "4.2(2c)"
},
{
"status": "affected",
"version": "4.2(2d)"
},
{
"status": "affected",
"version": "4.2(3b)"
},
{
"status": "affected",
"version": "4.1(3k)"
},
{
"status": "affected",
"version": "4.0(4o)"
},
{
"status": "affected",
"version": "4.2(2e)"
},
{
"status": "affected",
"version": "4.2(3d)"
},
{
"status": "affected",
"version": "4.2(3e)"
},
{
"status": "affected",
"version": "4.2(3g)"
},
{
"status": "affected",
"version": "4.1(3l)"
},
{
"status": "affected",
"version": "4.3(2b)"
},
{
"status": "affected",
"version": "4.2(3h)"
},
{
"status": "affected",
"version": "4.2(3i)"
},
{
"status": "affected",
"version": "4.3(2c)"
},
{
"status": "affected",
"version": "4.1(3m)"
},
{
"status": "affected",
"version": "4.3(2e)"
},
{
"status": "affected",
"version": "4.3(3a)"
},
{
"status": "affected",
"version": "4.2(3j)"
},
{
"status": "affected",
"version": "4.3(3c)"
},
{
"status": "affected",
"version": "4.3(4a)"
},
{
"status": "affected",
"version": "4.2(3k)"
},
{
"status": "affected",
"version": "4.3(4b)"
},
{
"status": "affected",
"version": "4.3(4c)"
},
{
"status": "affected",
"version": "4.2(3l)"
},
{
"status": "affected",
"version": "4.3(4d)"
},
{
"status": "affected",
"version": "4.3(2f)"
},
{
"status": "affected",
"version": "4.2(3m)"
},
{
"status": "affected",
"version": "4.3(5a)"
},
{
"status": "affected",
"version": "4.3(4e)"
},
{
"status": "affected",
"version": "4.1(3n)"
},
{
"status": "affected",
"version": "4.3(4f)"
},
{
"status": "affected",
"version": "4.2(3n)"
},
{
"status": "affected",
"version": "4.3(5c)"
},
{
"status": "affected",
"version": "4.2(3o)"
},
{
"status": "affected",
"version": "4.3(5d)"
},
{
"status": "affected",
"version": "4.3(6a)"
},
{
"status": "affected",
"version": "4.3(6b)"
},
{
"status": "affected",
"version": "4.3(5e)"
},
{
"status": "affected",
"version": "4.3(6c)"
},
{
"status": "affected",
"version": "4.2(3p)"
},
{
"status": "affected",
"version": "6.0(1b)"
},
{
"status": "affected",
"version": "6.0(1c)"
},
{
"status": "affected",
"version": "4.3(6d)"
},
{
"status": "affected",
"version": "6.0(1d)"
},
{
"status": "affected",
"version": "6.0(1e)"
},
{
"status": "affected",
"version": "4.3(6e)"
},
{
"status": "affected",
"version": "6.0(1f)"
},
{
"status": "affected",
"version": "4.3(6f)"
},
{
"status": "affected",
"version": "6.0(2b)"
},
{
"status": "affected",
"version": "6.0(1h)"
},
{
"status": "affected",
"version": "4.2(3r)"
},
{
"status": "affected",
"version": "6.0(2c)"
},
{
"status": "affected",
"version": "4.3(6g)"
},
{
"status": "affected",
"version": "6.0(2d)"
},
{
"status": "affected",
"version": "4.3(6h)"
},
{
"status": "affected",
"version": "4.2(3s)"
},
{
"status": "affected",
"version": "4.3(6i)"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "As part of Cisco\u0027s ongoing commitment to proactive security and product quality, the Cisco NX-OS engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities.\r\n\r\nThe vulnerabilities tracked by CVE-2026-76455 are related to improper access control issues that are grouped under the Common Weakness Enumeration (CWE) CWE-284."
}
],
"exploits": [
{
"lang": "en",
"value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "cvssV3_1"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-284",
"description": "Improper Access Control",
"lang": "en",
"type": "cwe"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-07T16:15:27.008Z",
"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"shortName": "cisco"
},
"references": [
{
"name": "cisco-sa-hardening-nxosw1-cWzSbtR",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-nxosw1-cWzSbtR"
}
],
"source": {
"advisory": "cisco-sa-hardening-nxosw1-cWzSbtR",
"defects": [
"CSCwu46198"
],
"discovery": "INTERNAL"
},
"title": "Cisco NX-OS Software Security Hardening Release: October 2026 - Improper Access Control Vulnerabilities"
}
},
"cveMetadata": {
"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"assignerShortName": "cisco",
"cveId": "CVE-2026-76455",
"datePublished": "2026-10-07T16:15:27.008Z",
"dateReserved": "2026-08-19T12:02:03.636Z",
"dateUpdated": "2026-10-08T03:55:52.070Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…