CVE-2026-20331 (GCVE-0-2026-20331)
Vulnerability from cvelistv5 – Published: 2026-09-16 16:56 – Updated: 2026-09-17 03:57
VLAI
EPSS
VEX
Title
Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Protection Mechanism Failure Vulnerabilities
Summary
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Adaptive Security Appliance Software, Cisco Secure Firewall Threat Defense Software and Cisco Secure Firewall Management Center Software 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-2026-20331 are related to the failure of protection mechanisms issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-693.
Severity
9.6 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-16 00:00 UTC
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
1 reference
Impacted products
3 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software |
Affected:
9.16.1
Affected: 9.16.1.28 Affected: 9.16.2 Affected: 9.16.2.3 Affected: 9.16.2.7 Affected: 9.16.2.11 Affected: 9.16.2.13 Affected: 9.16.2.14 Affected: 9.16.3.3 Affected: 9.16.3 Affected: 9.16.3.14 Affected: 9.16.3.15 Affected: 9.18.1.3 Affected: 9.18.2 Affected: 9.16.3.19 Affected: 9.16.3.23 Affected: 9.18.2.5 Affected: 9.16.4 Affected: 9.18.2.7 Affected: 9.16.4.9 Affected: 9.18.2.8 Affected: 9.16.4.14 Affected: 9.18.3 Affected: 9.16.4.18 Affected: 9.18.3.39 Affected: 9.16.4.19 Affected: 9.18.3.46 Affected: 9.16.4.27 Affected: 9.18.3.53 Affected: 9.18.3.55 Affected: 9.16.4.38 Affected: 9.16.4.39 Affected: 9.18.3.56 Affected: 9.20.1 Affected: 9.16.4.42 Affected: 9.18.4 Affected: 9.20.1.5 Affected: 9.18.4.5 Affected: 9.16.4.48 Affected: 9.18.4.8 Affected: 9.20.2 Affected: 9.16.4.55 Affected: 9.18.4.22 Affected: 9.20.2.10 Affected: 9.16.4.57 Affected: 9.18.4.24 Affected: 9.20.2.21 Affected: 9.16.4.61 Affected: 9.18.4.29 Affected: 9.20.2.22 Affected: 9.16.4.62 Affected: 9.18.4.34 Affected: 9.20.3 Affected: 9.16.4.67 Affected: 9.16.4.70 Affected: 9.18.4.40 Affected: 9.23.1 Affected: 9.22.1.1 Affected: 9.16.4.71 Affected: 9.20.3.4 Affected: 9.18.4.47 Affected: 9.20.3.7 Affected: 9.16.4.76 Affected: 9.20.3.9 Affected: 9.18.4.50 Affected: 9.22.1.3 Affected: 9.20.3.10 Affected: 9.22.1.2 Affected: 9.18.4.52 Affected: 9.20.3.13 Affected: 9.22.1.6 Affected: 9.18.4.53 Affected: 9.16.4.82 Affected: 9.22.2 Affected: 9.20.3.16 Affected: 9.19.1.42 Affected: 9.18.4.57 Affected: 9.16.4.84 Affected: 9.23.1.3 Affected: 9.20.3.20 Affected: 9.22.2.4 Affected: 9.23.1.7 Affected: 9.20.4 Affected: 9.22.2.9 Affected: 9.23.1.13 Affected: 9.20.4.7 Affected: 9.22.2.13 Affected: 9.18.4.66 Affected: 9.20.4.10 Affected: 9.23.1.19 Affected: 9.16.4.85 Affected: 9.22.2.14 Affected: 9.18.4.67 Affected: 9.24.1 Affected: 9.18.4.68 Affected: 9.23.1.22 Affected: 9.20.4.14 Affected: 9.22.2.20 Affected: 9.18.4.71 Affected: 9.20.4.19 Affected: 9.23.1.26 Affected: 9.16.4.89 Affected: 9.22.2.32 Affected: 9.18.4.76 Affected: 9.22.3 Affected: 9.24.1.5 Affected: 9.20.4.22 Affected: 9.24.1.9 Affected: 9.20.4.28 Affected: 9.22.3.5 Affected: 9.16.4.92 Affected: 9.18.4.135 Affected: 9.23.1.195 Affected: 9.20.4.30 Affected: 9.24.1.155 Affected: 9.23.1.32 Affected: 9.24.1.11 Affected: 9.20.4.34 Affected: 9.18.4.82 Affected: 9.24.10 Affected: 9.23.1.211 Affected: 9.20.4.235 Affected: 9.24.1.221 Affected: 9.22.3.191 |
guessed | |
| Cisco | Cisco Secure Firewall Management Center (FMC) |
Affected:
7.0.0
Affected: 7.0.0.1 Affected: 7.0.1 Affected: 7.0.1.1 Affected: 7.0.2 Affected: 7.2.0 Affected: 7.0.2.1 Affected: 7.0.3 Affected: 7.2.0.1 Affected: 7.0.4 Affected: 7.2.1 Affected: 7.0.5 Affected: 7.3.0 Affected: 7.2.2 Affected: 7.3.1 Affected: 7.2.3 Affected: 7.2.3.1 Affected: 7.2.4 Affected: 7.0.6 Affected: 7.2.4.1 Affected: 7.2.5 Affected: 7.3.1.1 Affected: 7.4.0 Affected: 7.0.6.1 Affected: 7.2.5.1 Affected: 7.4.1 Affected: 7.2.6 Affected: 7.4.1.1 Affected: 7.0.6.2 Affected: 7.2.7 Affected: 7.2.5.2 Affected: 7.3.1.2 Affected: 7.2.8 Affected: 7.6.0 Affected: 7.4.2 Affected: 7.2.8.1 Affected: 7.0.6.3 Affected: 7.4.2.1 Affected: 7.2.9 Affected: 7.0.7 Affected: 7.7.0 Affected: 7.4.2.2 Affected: 7.2.10 Affected: 7.6.1 Affected: 7.4.2.3 Affected: 7.0.8 Affected: 7.6.2 Affected: 7.7.10 Affected: 7.2.10.1 Affected: 7.0.8.1 Affected: 7.6.2.1 Affected: 7.2.10.2 Affected: 7.7.10.1 Affected: 7.4.2.4 Affected: 7.4.3 Affected: 7.6.3 Affected: 7.7.11 Affected: 7.6.4 Affected: 10.0.0 Affected: 7.4.4 Affected: 7.4.5 Affected: 7.0.9 Affected: 7.2.11 Affected: 7.7.12 Affected: 7.6.5 Affected: 7.4.6 Affected: 10.0.1 Affected: 7.4.7 |
guessed | |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software |
Affected:
7.0.0.1
Affected: 7.0.1 Affected: 7.0.1.1 Affected: 7.0.2 Affected: 7.0.2.1 Affected: 7.0.3 Affected: 7.0.4 Affected: 7.0.5 Affected: 7.3.0 Affected: 7.3.1 Affected: 7.0.6 Affected: 7.3.1.1 Affected: 7.4.0 Affected: 7.0.6.1 Affected: 7.4.1 Affected: 7.0.6.2 Affected: 7.4.1.1 Affected: 7.3.1.2 Affected: 7.6.0 Affected: 7.4.2 Affected: 7.0.6.3 Affected: 7.4.2.1 Affected: 7.0.7 Affected: 7.7.0 Affected: 7.4.2.2 Affected: 7.6.1 Affected: 7.4.2.3 Affected: 7.0.8 Affected: 7.6.2 Affected: 7.7.10 Affected: 7.7.11 Affected: 7.0.8.1 Affected: 7.6.2.1 Affected: 7.7.10.1 Affected: 7.4.2.4 Affected: 7.4.3 Affected: 7.6.4 Affected: 10.0.0 Affected: 7.4.4 Affected: 7.0.9 Affected: 7.4.7 |
guessed |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-20331",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-16T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-17T03:57:25.687Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
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{
"status": "affected",
"version": "9.16.1.28"
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{
"status": "affected",
"version": "9.16.2"
},
{
"status": "affected",
"version": "9.16.2.3"
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{
"status": "affected",
"version": "9.16.2.7"
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{
"status": "affected",
"version": "9.16.2.11"
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{
"status": "affected",
"version": "9.16.2.13"
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{
"status": "affected",
"version": "9.16.2.14"
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{
"status": "affected",
"version": "9.16.3.3"
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{
"status": "affected",
"version": "9.16.3"
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{
"status": "affected",
"version": "9.16.3.14"
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{
"status": "affected",
"version": "9.16.3.15"
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{
"status": "affected",
"version": "9.18.1.3"
},
{
"status": "affected",
"version": "9.18.2"
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{
"status": "affected",
"version": "9.16.3.19"
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{
"status": "affected",
"version": "9.16.3.23"
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{
"status": "affected",
"version": "9.18.2.5"
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{
"status": "affected",
"version": "9.16.4"
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{
"status": "affected",
"version": "9.18.2.7"
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{
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{
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{
"status": "affected",
"version": "9.16.4.14"
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{
"status": "affected",
"version": "9.18.3"
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{
"status": "affected",
"version": "9.16.4.18"
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{
"status": "affected",
"version": "9.18.3.39"
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{
"status": "affected",
"version": "9.16.4.19"
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{
"status": "affected",
"version": "9.18.3.46"
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{
"status": "affected",
"version": "9.16.4.27"
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{
"status": "affected",
"version": "9.18.3.53"
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{
"status": "affected",
"version": "9.18.3.55"
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{
"status": "affected",
"version": "9.16.4.38"
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{
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"version": "9.16.4.39"
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"status": "affected",
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{
"status": "affected",
"version": "9.20.1"
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{
"status": "affected",
"version": "9.16.4.42"
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{
"status": "affected",
"version": "9.18.4"
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{
"status": "affected",
"version": "9.20.1.5"
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{
"status": "affected",
"version": "9.18.4.5"
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{
"status": "affected",
"version": "9.16.4.48"
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{
"status": "affected",
"version": "9.18.4.8"
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{
"status": "affected",
"version": "9.20.2"
},
{
"status": "affected",
"version": "9.16.4.55"
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{
"status": "affected",
"version": "9.18.4.22"
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{
"status": "affected",
"version": "9.20.2.10"
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{
"status": "affected",
"version": "9.16.4.57"
},
{
"status": "affected",
"version": "9.18.4.24"
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{
"status": "affected",
"version": "9.20.2.21"
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{
"status": "affected",
"version": "9.16.4.61"
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{
"status": "affected",
"version": "9.18.4.29"
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{
"status": "affected",
"version": "9.20.2.22"
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{
"status": "affected",
"version": "9.16.4.62"
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{
"status": "affected",
"version": "9.18.4.34"
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{
"status": "affected",
"version": "9.20.3"
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{
"status": "affected",
"version": "9.16.4.67"
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{
"status": "affected",
"version": "9.16.4.70"
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{
"status": "affected",
"version": "9.18.4.40"
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{
"status": "affected",
"version": "9.23.1"
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{
"status": "affected",
"version": "9.22.1.1"
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{
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{
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"version": "9.20.3.4"
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{
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{
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"version": "9.20.3.7"
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{
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{
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{
"status": "affected",
"version": "9.18.4.50"
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{
"status": "affected",
"version": "9.22.1.3"
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{
"status": "affected",
"version": "9.20.3.10"
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{
"status": "affected",
"version": "9.22.1.2"
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{
"status": "affected",
"version": "9.18.4.52"
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{
"status": "affected",
"version": "9.20.3.13"
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{
"status": "affected",
"version": "9.22.1.6"
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{
"status": "affected",
"version": "9.18.4.53"
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{
"status": "affected",
"version": "9.16.4.82"
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{
"status": "affected",
"version": "9.22.2"
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{
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"version": "9.20.3.16"
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{
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"version": "9.19.1.42"
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{
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{
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"version": "9.16.4.84"
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{
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"version": "9.23.1.3"
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{
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"version": "9.20.3.20"
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{
"status": "affected",
"version": "9.22.2.4"
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{
"status": "affected",
"version": "9.23.1.7"
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{
"status": "affected",
"version": "9.20.4"
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{
"status": "affected",
"version": "9.22.2.9"
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{
"status": "affected",
"version": "9.23.1.13"
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{
"status": "affected",
"version": "9.20.4.7"
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{
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"version": "9.22.2.13"
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"version": "9.18.4.66"
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{
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{
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"version": "9.23.1.19"
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{
"status": "affected",
"version": "9.16.4.85"
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{
"status": "affected",
"version": "9.22.2.14"
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{
"status": "affected",
"version": "9.18.4.67"
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{
"status": "affected",
"version": "9.24.1"
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{
"status": "affected",
"version": "9.18.4.68"
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{
"status": "affected",
"version": "9.23.1.22"
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{
"status": "affected",
"version": "9.20.4.14"
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{
"status": "affected",
"version": "9.22.2.20"
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{
"status": "affected",
"version": "9.18.4.71"
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{
"status": "affected",
"version": "9.20.4.19"
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{
"status": "affected",
"version": "9.23.1.26"
},
{
"status": "affected",
"version": "9.16.4.89"
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{
"status": "affected",
"version": "9.22.2.32"
},
{
"status": "affected",
"version": "9.18.4.76"
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{
"status": "affected",
"version": "9.22.3"
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{
"status": "affected",
"version": "9.24.1.5"
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{
"status": "affected",
"version": "9.20.4.22"
},
{
"status": "affected",
"version": "9.24.1.9"
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{
"status": "affected",
"version": "9.20.4.28"
},
{
"status": "affected",
"version": "9.22.3.5"
},
{
"status": "affected",
"version": "9.16.4.92"
},
{
"status": "affected",
"version": "9.18.4.135"
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{
"status": "affected",
"version": "9.23.1.195"
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{
"status": "affected",
"version": "9.20.4.30"
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{
"status": "affected",
"version": "9.24.1.155"
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{
"status": "affected",
"version": "9.23.1.32"
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{
"status": "affected",
"version": "9.24.1.11"
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{
"status": "affected",
"version": "9.20.4.34"
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{
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"version": "9.18.4.82"
},
{
"status": "affected",
"version": "9.24.10"
},
{
"status": "affected",
"version": "9.23.1.211"
},
{
"status": "affected",
"version": "9.20.4.235"
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{
"status": "affected",
"version": "9.24.1.221"
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{
"status": "affected",
"version": "9.22.3.191"
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{
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"vendor": "Cisco",
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{
"status": "affected",
"version": "7.0.0"
},
{
"status": "affected",
"version": "7.0.0.1"
},
{
"status": "affected",
"version": "7.0.1"
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{
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{
"status": "affected",
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{
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{
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{
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{
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{
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{
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},
{
"status": "affected",
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},
{
"status": "affected",
"version": "7.3.0"
},
{
"status": "affected",
"version": "7.2.2"
},
{
"status": "affected",
"version": "7.3.1"
},
{
"status": "affected",
"version": "7.2.3"
},
{
"status": "affected",
"version": "7.2.3.1"
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{
"status": "affected",
"version": "7.2.4"
},
{
"status": "affected",
"version": "7.0.6"
},
{
"status": "affected",
"version": "7.2.4.1"
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{
"status": "affected",
"version": "7.2.5"
},
{
"status": "affected",
"version": "7.3.1.1"
},
{
"status": "affected",
"version": "7.4.0"
},
{
"status": "affected",
"version": "7.0.6.1"
},
{
"status": "affected",
"version": "7.2.5.1"
},
{
"status": "affected",
"version": "7.4.1"
},
{
"status": "affected",
"version": "7.2.6"
},
{
"status": "affected",
"version": "7.4.1.1"
},
{
"status": "affected",
"version": "7.0.6.2"
},
{
"status": "affected",
"version": "7.2.7"
},
{
"status": "affected",
"version": "7.2.5.2"
},
{
"status": "affected",
"version": "7.3.1.2"
},
{
"status": "affected",
"version": "7.2.8"
},
{
"status": "affected",
"version": "7.6.0"
},
{
"status": "affected",
"version": "7.4.2"
},
{
"status": "affected",
"version": "7.2.8.1"
},
{
"status": "affected",
"version": "7.0.6.3"
},
{
"status": "affected",
"version": "7.4.2.1"
},
{
"status": "affected",
"version": "7.2.9"
},
{
"status": "affected",
"version": "7.0.7"
},
{
"status": "affected",
"version": "7.7.0"
},
{
"status": "affected",
"version": "7.4.2.2"
},
{
"status": "affected",
"version": "7.2.10"
},
{
"status": "affected",
"version": "7.6.1"
},
{
"status": "affected",
"version": "7.4.2.3"
},
{
"status": "affected",
"version": "7.0.8"
},
{
"status": "affected",
"version": "7.6.2"
},
{
"status": "affected",
"version": "7.7.10"
},
{
"status": "affected",
"version": "7.2.10.1"
},
{
"status": "affected",
"version": "7.0.8.1"
},
{
"status": "affected",
"version": "7.6.2.1"
},
{
"status": "affected",
"version": "7.2.10.2"
},
{
"status": "affected",
"version": "7.7.10.1"
},
{
"status": "affected",
"version": "7.4.2.4"
},
{
"status": "affected",
"version": "7.4.3"
},
{
"status": "affected",
"version": "7.6.3"
},
{
"status": "affected",
"version": "7.7.11"
},
{
"status": "affected",
"version": "7.6.4"
},
{
"status": "affected",
"version": "10.0.0"
},
{
"status": "affected",
"version": "7.4.4"
},
{
"status": "affected",
"version": "7.4.5"
},
{
"status": "affected",
"version": "7.0.9"
},
{
"status": "affected",
"version": "7.2.11"
},
{
"status": "affected",
"version": "7.7.12"
},
{
"status": "affected",
"version": "7.6.5"
},
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9.6, \"attackVector\": \"ADJACENT_NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"LOW\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"Cisco\", \"product\": \"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software\", \"versions\": [{\"status\": \"affected\", \"version\": \"9.16.1\"}, {\"status\": \"affected\", \"version\": \"9.16.1.28\"}, {\"status\": \"affected\", \"version\": \"9.16.2\"}, {\"status\": \"affected\", \"version\": \"9.16.2.3\"}, {\"status\": \"affected\", \"version\": \"9.16.2.7\"}, {\"status\": \"affected\", \"version\": \"9.16.2.11\"}, {\"status\": \"affected\", \"version\": \"9.16.2.13\"}, {\"status\": \"affected\", \"version\": \"9.16.2.14\"}, {\"status\": \"affected\", \"version\": \"9.16.3.3\"}, {\"status\": \"affected\", \"version\": \"9.16.3\"}, {\"status\": \"affected\", \"version\": \"9.16.3.14\"}, {\"status\": \"affected\", \"version\": \"9.16.3.15\"}, {\"status\": \"affected\", \"version\": \"9.18.1.3\"}, {\"status\": \"affected\", \"version\": \"9.18.2\"}, {\"status\": \"affected\", \"version\": \"9.16.3.19\"}, {\"status\": \"affected\", \"version\": \"9.16.3.23\"}, {\"status\": \"affected\", \"version\": \"9.18.2.5\"}, {\"status\": \"affected\", \"version\": \"9.16.4\"}, {\"status\": \"affected\", \"version\": \"9.18.2.7\"}, {\"status\": \"affected\", \"version\": \"9.16.4.9\"}, {\"status\": \"affected\", \"version\": \"9.18.2.8\"}, {\"status\": \"affected\", \"version\": \"9.16.4.14\"}, {\"status\": \"affected\", \"version\": \"9.18.3\"}, {\"status\": \"affected\", \"version\": \"9.16.4.18\"}, {\"status\": \"affected\", \"version\": \"9.18.3.39\"}, {\"status\": \"affected\", \"version\": \"9.16.4.19\"}, {\"status\": \"affected\", \"version\": \"9.18.3.46\"}, {\"status\": \"affected\", \"version\": \"9.16.4.27\"}, {\"status\": \"affected\", \"version\": \"9.18.3.53\"}, {\"status\": \"affected\", \"version\": \"9.18.3.55\"}, {\"status\": \"affected\", \"version\": \"9.16.4.38\"}, {\"status\": \"affected\", \"version\": \"9.16.4.39\"}, {\"status\": \"affected\", \"version\": \"9.18.3.56\"}, {\"status\": \"affected\", \"version\": \"9.20.1\"}, {\"status\": \"affected\", \"version\": \"9.16.4.42\"}, {\"status\": \"affected\", \"version\": \"9.18.4\"}, {\"status\": \"affected\", \"version\": \"9.20.1.5\"}, {\"status\": \"affected\", \"version\": \"9.18.4.5\"}, {\"status\": \"affected\", \"version\": \"9.16.4.48\"}, {\"status\": \"affected\", \"version\": \"9.18.4.8\"}, {\"status\": \"affected\", \"version\": \"9.20.2\"}, {\"status\": \"affected\", \"version\": \"9.16.4.55\"}, {\"status\": \"affected\", \"version\": \"9.18.4.22\"}, {\"status\": \"affected\", \"version\": \"9.20.2.10\"}, {\"status\": \"affected\", \"version\": \"9.16.4.57\"}, {\"status\": \"affected\", \"version\": \"9.18.4.24\"}, {\"status\": \"affected\", \"version\": \"9.20.2.21\"}, {\"status\": \"affected\", \"version\": \"9.16.4.61\"}, {\"status\": \"affected\", \"version\": \"9.18.4.29\"}, {\"status\": \"affected\", \"version\": \"9.20.2.22\"}, {\"status\": \"affected\", \"version\": \"9.16.4.62\"}, {\"status\": \"affected\", \"version\": \"9.18.4.34\"}, {\"status\": \"affected\", \"version\": \"9.20.3\"}, {\"status\": \"affected\", \"version\": \"9.16.4.67\"}, {\"status\": \"affected\", \"version\": \"9.16.4.70\"}, {\"status\": \"affected\", \"version\": \"9.18.4.40\"}, {\"status\": \"affected\", \"version\": \"9.23.1\"}, {\"status\": \"affected\", \"version\": \"9.22.1.1\"}, {\"status\": \"affected\", \"version\": \"9.16.4.71\"}, {\"status\": \"affected\", \"version\": \"9.20.3.4\"}, {\"status\": \"affected\", \"version\": \"9.18.4.47\"}, {\"status\": \"affected\", \"version\": \"9.20.3.7\"}, {\"status\": \"affected\", \"version\": \"9.16.4.76\"}, {\"status\": \"affected\", \"version\": \"9.20.3.9\"}, {\"status\": \"affected\", \"version\": \"9.18.4.50\"}, {\"status\": \"affected\", \"version\": \"9.22.1.3\"}, {\"status\": \"affected\", \"version\": \"9.20.3.10\"}, {\"status\": \"affected\", \"version\": \"9.22.1.2\"}, {\"status\": \"affected\", \"version\": \"9.18.4.52\"}, {\"status\": \"affected\", \"version\": \"9.20.3.13\"}, {\"status\": \"affected\", \"version\": \"9.22.1.6\"}, {\"status\": \"affected\", \"version\": \"9.18.4.53\"}, {\"status\": \"affected\", \"version\": \"9.16.4.82\"}, {\"status\": \"affected\", \"version\": \"9.22.2\"}, {\"status\": \"affected\", \"version\": \"9.20.3.16\"}, {\"status\": \"affected\", \"version\": \"9.19.1.42\"}, {\"status\": \"affected\", \"version\": \"9.18.4.57\"}, {\"status\": \"affected\", \"version\": \"9.16.4.84\"}, {\"status\": \"affected\", \"version\": \"9.23.1.3\"}, {\"status\": \"affected\", \"version\": \"9.20.3.20\"}, {\"status\": \"affected\", \"version\": \"9.22.2.4\"}, {\"status\": \"affected\", \"version\": \"9.23.1.7\"}, {\"status\": \"affected\", \"version\": \"9.20.4\"}, {\"status\": \"affected\", \"version\": \"9.22.2.9\"}, {\"status\": \"affected\", \"version\": \"9.23.1.13\"}, {\"status\": \"affected\", \"version\": \"9.20.4.7\"}, {\"status\": \"affected\", \"version\": \"9.22.2.13\"}, {\"status\": \"affected\", \"version\": \"9.18.4.66\"}, {\"status\": \"affected\", \"version\": \"9.20.4.10\"}, {\"status\": \"affected\", \"version\": \"9.23.1.19\"}, {\"status\": \"affected\", \"version\": \"9.16.4.85\"}, {\"status\": \"affected\", \"version\": \"9.22.2.14\"}, {\"status\": \"affected\", \"version\": \"9.18.4.67\"}, {\"status\": \"affected\", \"version\": \"9.24.1\"}, {\"status\": \"affected\", \"version\": \"9.18.4.68\"}, {\"status\": \"affected\", \"version\": \"9.23.1.22\"}, {\"status\": \"affected\", \"version\": \"9.20.4.14\"}, {\"status\": \"affected\", \"version\": \"9.22.2.20\"}, {\"status\": \"affected\", \"version\": \"9.18.4.71\"}, {\"status\": \"affected\", \"version\": \"9.20.4.19\"}, {\"status\": \"affected\", \"version\": \"9.23.1.26\"}, {\"status\": \"affected\", \"version\": \"9.16.4.89\"}, {\"status\": \"affected\", \"version\": \"9.22.2.32\"}, {\"status\": \"affected\", \"version\": \"9.18.4.76\"}, {\"status\": \"affected\", \"version\": \"9.22.3\"}, {\"status\": \"affected\", \"version\": \"9.24.1.5\"}, {\"status\": \"affected\", \"version\": \"9.20.4.22\"}, {\"status\": \"affected\", \"version\": \"9.24.1.9\"}, {\"status\": \"affected\", \"version\": \"9.20.4.28\"}, {\"status\": \"affected\", \"version\": \"9.22.3.5\"}, {\"status\": \"affected\", \"version\": \"9.16.4.92\"}, {\"status\": \"affected\", \"version\": \"9.18.4.135\"}, {\"status\": \"affected\", \"version\": \"9.23.1.195\"}, {\"status\": \"affected\", \"version\": \"9.20.4.30\"}, {\"status\": \"affected\", \"version\": \"9.24.1.155\"}, {\"status\": \"affected\", \"version\": \"9.23.1.32\"}, {\"status\": \"affected\", \"version\": \"9.24.1.11\"}, {\"status\": \"affected\", \"version\": \"9.20.4.34\"}, {\"status\": \"affected\", \"version\": \"9.18.4.82\"}, {\"status\": \"affected\", \"version\": \"9.24.10\"}, {\"status\": \"affected\", \"version\": \"9.23.1.211\"}, {\"status\": \"affected\", \"version\": \"9.20.4.235\"}, {\"status\": \"affected\", \"version\": \"9.24.1.221\"}, {\"status\": \"affected\", \"version\": \"9.22.3.191\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Cisco\", \"product\": \"Cisco Secure Firewall Management Center (FMC)\", \"versions\": [{\"status\": \"affected\", \"version\": \"7.0.0\"}, {\"status\": \"affected\", \"version\": \"7.0.0.1\"}, {\"status\": \"affected\", \"version\": \"7.0.1\"}, {\"status\": \"affected\", \"version\": \"7.0.1.1\"}, {\"status\": \"affected\", \"version\": \"7.0.2\"}, {\"status\": \"affected\", \"version\": \"7.2.0\"}, {\"status\": \"affected\", \"version\": \"7.0.2.1\"}, {\"status\": \"affected\", \"version\": \"7.0.3\"}, {\"status\": \"affected\", \"version\": \"7.2.0.1\"}, {\"status\": \"affected\", \"version\": \"7.0.4\"}, {\"status\": \"affected\", \"version\": \"7.2.1\"}, {\"status\": \"affected\", \"version\": \"7.0.5\"}, {\"status\": \"affected\", \"version\": \"7.3.0\"}, {\"status\": \"affected\", \"version\": \"7.2.2\"}, {\"status\": \"affected\", \"version\": \"7.3.1\"}, {\"status\": \"affected\", \"version\": \"7.2.3\"}, {\"status\": \"affected\", \"version\": \"7.2.3.1\"}, {\"status\": \"affected\", \"version\": \"7.2.4\"}, {\"status\": \"affected\", \"version\": \"7.0.6\"}, {\"status\": \"affected\", \"version\": \"7.2.4.1\"}, {\"status\": \"affected\", \"version\": \"7.2.5\"}, {\"status\": \"affected\", \"version\": \"7.3.1.1\"}, {\"status\": \"affected\", \"version\": \"7.4.0\"}, {\"status\": \"affected\", \"version\": \"7.0.6.1\"}, {\"status\": \"affected\", \"version\": \"7.2.5.1\"}, {\"status\": \"affected\", \"version\": \"7.4.1\"}, {\"status\": \"affected\", \"version\": \"7.2.6\"}, {\"status\": \"affected\", \"version\": \"7.4.1.1\"}, {\"status\": \"affected\", \"version\": \"7.0.6.2\"}, {\"status\": \"affected\", \"version\": \"7.2.7\"}, {\"status\": \"affected\", \"version\": \"7.2.5.2\"}, {\"status\": \"affected\", \"version\": \"7.3.1.2\"}, {\"status\": \"affected\", \"version\": \"7.2.8\"}, {\"status\": \"affected\", \"version\": \"7.6.0\"}, {\"status\": \"affected\", \"version\": \"7.4.2\"}, {\"status\": \"affected\", \"version\": \"7.2.8.1\"}, {\"status\": \"affected\", \"version\": \"7.0.6.3\"}, {\"status\": \"affected\", \"version\": \"7.4.2.1\"}, {\"status\": \"affected\", \"version\": \"7.2.9\"}, {\"status\": \"affected\", \"version\": \"7.0.7\"}, {\"status\": \"affected\", \"version\": \"7.7.0\"}, {\"status\": \"affected\", \"version\": \"7.4.2.2\"}, {\"status\": \"affected\", \"version\": \"7.2.10\"}, {\"status\": \"affected\", \"version\": \"7.6.1\"}, {\"status\": \"affected\", \"version\": \"7.4.2.3\"}, {\"status\": \"affected\", \"version\": \"7.0.8\"}, {\"status\": \"affected\", \"version\": \"7.6.2\"}, {\"status\": \"affected\", \"version\": \"7.7.10\"}, {\"status\": \"affected\", \"version\": \"7.2.10.1\"}, {\"status\": \"affected\", \"version\": \"7.0.8.1\"}, {\"status\": \"affected\", \"version\": \"7.6.2.1\"}, {\"status\": \"affected\", \"version\": \"7.2.10.2\"}, {\"status\": \"affected\", \"version\": \"7.7.10.1\"}, {\"status\": \"affected\", \"version\": \"7.4.2.4\"}, {\"status\": \"affected\", \"version\": \"7.4.3\"}, {\"status\": \"affected\", \"version\": \"7.6.3\"}, {\"status\": \"affected\", \"version\": \"7.7.11\"}, {\"status\": \"affected\", \"version\": \"7.6.4\"}, {\"status\": \"affected\", \"version\": \"10.0.0\"}, {\"status\": \"affected\", \"version\": \"7.4.4\"}, {\"status\": \"affected\", \"version\": \"7.4.5\"}, {\"status\": \"affected\", \"version\": \"7.0.9\"}, {\"status\": \"affected\", \"version\": \"7.2.11\"}, {\"status\": \"affected\", \"version\": \"7.7.12\"}, {\"status\": \"affected\", \"version\": \"7.6.5\"}, {\"status\": \"affected\", \"version\": \"7.4.6\"}, {\"status\": \"affected\", \"version\": \"10.0.1\"}, {\"status\": \"affected\", \"version\": \"7.4.7\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Cisco\", \"product\": \"Cisco Secure Firewall Threat Defense (FTD) Software\", \"versions\": [{\"status\": \"affected\", \"version\": \"7.0.0.1\"}, {\"status\": \"affected\", \"version\": \"7.0.1\"}, {\"status\": \"affected\", \"version\": \"7.0.1.1\"}, {\"status\": \"affected\", \"version\": \"7.0.2\"}, {\"status\": \"affected\", \"version\": \"7.0.2.1\"}, {\"status\": \"affected\", \"version\": \"7.0.3\"}, {\"status\": \"affected\", \"version\": \"7.0.4\"}, {\"status\": \"affected\", \"version\": \"7.0.5\"}, {\"status\": \"affected\", \"version\": \"7.3.0\"}, {\"status\": \"affected\", \"version\": \"7.3.1\"}, {\"status\": \"affected\", \"version\": \"7.0.6\"}, {\"status\": \"affected\", \"version\": \"7.3.1.1\"}, {\"status\": \"affected\", \"version\": \"7.4.0\"}, {\"status\": \"affected\", \"version\": \"7.0.6.1\"}, {\"status\": \"affected\", \"version\": \"7.4.1\"}, {\"status\": \"affected\", \"version\": \"7.0.6.2\"}, {\"status\": \"affected\", \"version\": \"7.4.1.1\"}, {\"status\": \"affected\", \"version\": \"7.3.1.2\"}, {\"status\": \"affected\", \"version\": \"7.6.0\"}, {\"status\": \"affected\", \"version\": \"7.4.2\"}, {\"status\": \"affected\", \"version\": \"7.0.6.3\"}, {\"status\": \"affected\", \"version\": \"7.4.2.1\"}, {\"status\": \"affected\", \"version\": \"7.0.7\"}, {\"status\": \"affected\", \"version\": \"7.7.0\"}, {\"status\": \"affected\", \"version\": \"7.4.2.2\"}, {\"status\": \"affected\", \"version\": \"7.6.1\"}, {\"status\": \"affected\", \"version\": \"7.4.2.3\"}, {\"status\": \"affected\", \"version\": \"7.0.8\"}, {\"status\": \"affected\", \"version\": \"7.6.2\"}, {\"status\": \"affected\", \"version\": \"7.7.10\"}, {\"status\": \"affected\", \"version\": \"7.7.11\"}, {\"status\": \"affected\", \"version\": \"7.0.8.1\"}, {\"status\": \"affected\", \"version\": \"7.6.2.1\"}, {\"status\": \"affected\", \"version\": \"7.7.10.1\"}, {\"status\": \"affected\", \"version\": \"7.4.2.4\"}, {\"status\": \"affected\", \"version\": \"7.4.3\"}, {\"status\": \"affected\", \"version\": \"7.6.4\"}, {\"status\": \"affected\", \"version\": \"10.0.0\"}, {\"status\": \"affected\", \"version\": \"7.4.4\"}, {\"status\": \"affected\", \"version\": \"7.0.9\"}, {\"status\": \"affected\", \"version\": \"7.4.7\"}], \"defaultStatus\": \"unknown\"}], \"exploits\": [{\"lang\": \"en\", \"value\": \"Except as otherwise noted previously, the Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.\"}], \"references\": [{\"url\": \"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-asaftdfmc-uvpPROhN\", \"name\": \"cisco-sa-hardening-asaftdfmc-uvpPROhN\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"As part of Cisco\u0027s ongoing commitment to proactive security and product quality, the Cisco Secure Adaptive Security Appliance Software, Cisco Secure Firewall Threat Defense Software and Cisco Secure Firewall Management Center Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. \u0026nbsp;\\r\\n\\r\\nThe vulnerabilities tracked by CVE-2026-20331 are related to the failure of protection mechanisms issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-693.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"cwe\", \"cweId\": \"CWE-693\", \"description\": \"Protection Mechanism Failure\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2026-09-16T20:05:55.134Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-20331\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-09-17T03:57:25.687Z\", \"dateReserved\": \"2025-10-08T11:59:15.412Z\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2026-09-16T16:56:18.183Z\", \"assignerShortName\": \"cisco\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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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.
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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.
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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.
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