FKIE_CVE-2026-20122
Vulnerability from fkie_nvd - Published: 2026-02-25 17:25 - Updated: 2026-06-17 10:17
Severity
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Summary
A vulnerability in the API of Cisco Catalyst SD-WAN Manager could allow an authenticated, remote attacker to overwrite arbitrary files on the local file system. To exploit this vulnerability, the attacker must have valid read-only credentials with API access on the affected system.
This vulnerability is due to improper file handling on the API interface of an affected system. An attacker could exploit this vulnerability by uploading a malicious file on the local file system. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system and gain vmanage user privileges.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| cisco | catalyst_sd-wan_manager | * | |
| cisco | catalyst_sd-wan_manager | * | |
| cisco | catalyst_sd-wan_manager | * | |
| cisco | catalyst_sd-wan_manager | * | |
| cisco | catalyst_sd-wan_manager | 20.12.6 |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unknown",
"product": "Cisco Catalyst SD-WAN Manager",
"vendor": "Cisco",
"versions": [
{
"status": "affected",
"version": "20.1.12"
},
{
"status": "affected",
"version": "19.2.1"
},
{
"status": "affected",
"version": "18.4.4"
},
{
"status": "affected",
"version": "18.4.5"
},
{
"status": "affected",
"version": "20.1.1.1"
},
{
"status": "affected",
"version": "20.1.1"
},
{
"status": "affected",
"version": "19.3.0"
},
{
"status": "affected",
"version": "19.2.2"
},
{
"status": "affected",
"version": "19.2.099"
},
{
"status": "affected",
"version": "18.3.6"
},
{
"status": "affected",
"version": "18.3.7"
},
{
"status": "affected",
"version": "19.2.0"
},
{
"status": "affected",
"version": "18.3.8"
},
{
"status": "affected",
"version": "19.0.0"
},
{
"status": "affected",
"version": "19.1.0"
},
{
"status": "affected",
"version": "18.4.302"
},
{
"status": "affected",
"version": "18.4.303"
},
{
"status": "affected",
"version": "19.2.097"
},
{
"status": "affected",
"version": "19.2.098"
},
{
"status": "affected",
"version": "17.2.10"
},
{
"status": "affected",
"version": "18.3.6.1"
},
{
"status": "affected",
"version": "19.0.1a"
},
{
"status": "affected",
"version": "18.2.0"
},
{
"status": "affected",
"version": "18.4.3"
},
{
"status": "affected",
"version": "18.4.1"
},
{
"status": "affected",
"version": "17.2.8"
},
{
"status": "affected",
"version": "18.3.3.1"
},
{
"status": "affected",
"version": "18.4.0"
},
{
"status": "affected",
"version": "18.3.1"
},
{
"status": "affected",
"version": "17.2.6"
},
{
"status": "affected",
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},
{
"status": "affected",
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{
"status": "affected",
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{
"status": "affected",
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{
"status": "affected",
"version": "18.3.5"
},
{
"status": "affected",
"version": "18.4.0.1"
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{
"status": "affected",
"version": "18.3.3"
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{
"status": "affected",
"version": "17.2.7"
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{
"status": "affected",
"version": "17.2.4"
},
{
"status": "affected",
"version": "18.3.0"
},
{
"status": "affected",
"version": "19.2.3"
},
{
"status": "affected",
"version": "18.4.501_ES"
},
{
"status": "affected",
"version": "20.3.1"
},
{
"status": "affected",
"version": "20.1.2"
},
{
"status": "affected",
"version": "19.2.929"
},
{
"status": "affected",
"version": "19.2.31"
},
{
"status": "affected",
"version": "20.3.2"
},
{
"status": "affected",
"version": "19.2.32"
},
{
"status": "affected",
"version": "20.3.2_925"
},
{
"status": "affected",
"version": "20.3.2.1"
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{
"status": "affected",
"version": "20.3.2.1_927"
},
{
"status": "affected",
"version": "18.4.6"
},
{
"status": "affected",
"version": "20.1.2_937"
},
{
"status": "affected",
"version": "20.4.1"
},
{
"status": "affected",
"version": "20.3.2_928"
},
{
"status": "affected",
"version": "20.3.2_929"
},
{
"status": "affected",
"version": "20.4.1.0.1"
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{
"status": "affected",
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{
"status": "affected",
"version": "19.2.4"
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{
"status": "affected",
"version": "20.5.0.1.1"
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{
"status": "affected",
"version": "20.4.1.1"
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{
"status": "affected",
"version": "20.3.3"
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{
"status": "affected",
"version": "19.2.4.0.1"
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{
"status": "affected",
"version": "20.3.2_937"
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{
"status": "affected",
"version": "20.3.3.1"
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{
"status": "affected",
"version": "20.5.1"
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{
"status": "affected",
"version": "20.1.3"
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{
"status": "affected",
"version": "20.3.3.0.4"
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{
"status": "affected",
"version": "20.3.3.1.2"
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{
"status": "affected",
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{
"status": "affected",
"version": "20.4.1.2"
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{
"status": "affected",
"version": "20.3.3.0.2"
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"status": "affected",
"version": "20.4.1.1.5"
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{
"status": "affected",
"version": "20.4.1.0.01"
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{
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"status": "affected",
"version": "20.5.1.0.1"
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{
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"version": "20.3.3.1.10"
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{
"status": "affected",
"version": "20.3.3.0.8"
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{
"status": "affected",
"version": "20.4.2"
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{
"status": "affected",
"version": "20.4.2.0.1"
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{
"status": "affected",
"version": "20.3.4"
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{
"status": "affected",
"version": "20.3.3.0.14"
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{
"status": "affected",
"version": "19.2.4.0.8"
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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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{
"status": "affected",
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{
"status": "affected",
"version": "20.7.1EFT2"
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{
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{
"status": "affected",
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{
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{
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{
"status": "affected",
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{
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"version": "20.6.2.1"
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{
"status": "affected",
"version": "20.3.4.1"
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{
"status": "affected",
"version": "20.5.1.1"
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{
"status": "affected",
"version": "20.4.2.1"
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{
"status": "affected",
"version": "20.4.2.1.1"
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{
"status": "affected",
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{
"status": "affected",
"version": "20.3.813"
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{
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{
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"version": "20.4.2.2.1"
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{
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{
"status": "affected",
"version": "20.3.4.2"
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{
"status": "affected",
"version": "20.3.814"
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{
"status": "affected",
"version": "20.4.2.2"
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{
"status": "affected",
"version": "20.6.2.2"
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{
"status": "affected",
"version": "20.3.4.2.1"
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{
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"version": "20.7.1.1"
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{
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{
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{
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{
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{
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"version": "20.4.2.2.2"
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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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"version": "20.6.3"
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{
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{
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"version": "20.4.2.2.4"
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{
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{
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{
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"version": "20.3.5.0.8"
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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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{
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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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{
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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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{
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{
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"version": "20.10.1_LI_Images"
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{
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"version": "20.9.2_LI_Images"
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{
"status": "affected",
"version": "20.3.7"
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{
"status": "affected",
"version": "20.9.3"
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{
"status": "affected",
"version": "20.6.5.1"
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{
"status": "affected",
"version": "20.11.1"
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{
"status": "affected",
"version": "20.11.1_LI_Images"
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{
"status": "affected",
"version": "20.9.3_LI_ Images"
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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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{
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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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{
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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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{
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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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{
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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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{
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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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{
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{
"status": "affected",
"version": "20.9.3.2_LI_Images"
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{
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{
"status": "affected",
"version": "20.9.3.0.20"
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{
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{
"status": "affected",
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{
"status": "affected",
"version": "20.6.5.1.11"
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{
"status": "affected",
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{
"status": "affected",
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{
"status": "affected",
"version": "20.6.5.1.13"
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{
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"version": "20.9.3.0.23"
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{
"status": "affected",
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{
"status": "affected",
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{
"status": "affected",
"version": "20.9.4.1_LI_Images"
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{
"status": "affected",
"version": "20.9.3.0.25"
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{
"status": "affected",
"version": "20.9.3.0.24"
},
{
"status": "affected",
"version": "20.6.5.1.14"
},
{
"status": "affected",
"version": "20.3.8"
},
{
"status": "affected",
"version": "20.6.6"
},
{
"status": "affected",
"version": "20.9.3.0.26"
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{
"status": "affected",
"version": "20.6.3.0.51"
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{
"status": "affected",
"version": "20.9.3.0.29"
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{
"status": "affected",
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{
"status": "affected",
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{
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{
"status": "affected",
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},
{
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{
"status": "affected",
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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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},
{
"status": "affected",
"version": "20.9.4.1.3"
},
{
"status": "affected",
"version": "20.6.7"
},
{
"status": "affected",
"version": "20.9.5.1"
},
{
"status": "affected",
"version": "20.9.5.1_LI_Images"
},
{
"status": "affected",
"version": "20.9.4.1.6"
},
{
"status": "affected",
"version": "20.14.1"
},
{
"status": "affected",
"version": "20.14.1_LI_Images"
},
{
"status": "affected",
"version": "20.9.5.2"
},
{
"status": "affected",
"version": "20.9.5.2.1"
},
{
"status": "affected",
"version": "20.9.5.2_LI_Images"
},
{
"status": "affected",
"version": "20.12.3.1"
},
{
"status": "affected",
"version": "20.12.4"
},
{
"status": "affected",
"version": "20.15.1_LI_Images"
},
{
"status": "affected",
"version": "20.15.1"
},
{
"status": "affected",
"version": "20.9.5.1.4"
},
{
"status": "affected",
"version": "20.9.5.2.7"
},
{
"status": "affected",
"version": "20.9.5.2.13"
},
{
"status": "affected",
"version": "20.9.6"
},
{
"status": "affected",
"version": "20.9.6_LI_Images"
},
{
"status": "affected",
"version": "20.9.5.2.14"
},
{
"status": "affected",
"version": "20.6.8"
},
{
"status": "affected",
"version": "20.12.4.0.03"
},
{
"status": "affected",
"version": "20.16.1"
},
{
"status": "affected",
"version": "20.16.1_LI_Images"
},
{
"status": "affected",
"version": "20.12.4_LI_Images"
},
{
"status": "affected",
"version": "20.9.5.2.16"
},
{
"status": "affected",
"version": "20.12.4.0.4"
},
{
"status": "affected",
"version": "20.12.401"
},
{
"status": "affected",
"version": "20.9.5.3"
},
{
"status": "affected",
"version": "20.9.5.3_LI_Images"
},
{
"status": "affected",
"version": "20.12.4.1_LI_Images"
},
{
"status": "affected",
"version": "20.12.4.1"
},
{
"status": "affected",
"version": "20.9.5.2.21"
},
{
"status": "affected",
"version": "20.9.6.0.3"
},
{
"status": "affected",
"version": "20.12.4.0.6"
},
{
"status": "affected",
"version": "20.15.2_LI_Images"
},
{
"status": "affected",
"version": "20.15.2"
},
{
"status": "affected",
"version": "20.12.4_Monthly_ES5"
},
{
"status": "affected",
"version": "20.12.5"
},
{
"status": "affected",
"version": "20.12.5_LI_Images"
},
{
"status": "affected",
"version": "20.9.7_LI _Images"
},
{
"status": "affected",
"version": "20.9.7"
},
{
"status": "affected",
"version": "20.15.3"
},
{
"status": "affected",
"version": "20.15.3_ LI _Images"
},
{
"status": "affected",
"version": "20.12.501"
},
{
"status": "affected",
"version": "20.12.5.1_LI_Images"
},
{
"status": "affected",
"version": "20.12.5.1"
},
{
"status": "affected",
"version": "20.12.5.2_LI_Images"
},
{
"status": "affected",
"version": "20.12.5.2"
},
{
"status": "affected",
"version": "20.15.3.1"
},
{
"status": "affected",
"version": "20.15.4_LI_Images"
},
{
"status": "affected",
"version": "20.15.4"
},
{
"status": "affected",
"version": "20.9.7.1_LI _Images"
},
{
"status": "affected",
"version": "20.9.7.1"
},
{
"status": "affected",
"version": "20.18.1"
},
{
"status": "affected",
"version": "20.18.1_LI_Images"
},
{
"status": "affected",
"version": "20.12.6_LI_Images"
},
{
"status": "affected",
"version": "20.12.6"
},
{
"status": "affected",
"version": "20.12.5.1.01"
},
{
"status": "affected",
"version": "20.9.8"
},
{
"status": "affected",
"version": "20.9.8_LI_Images"
},
{
"status": "affected",
"version": "20.18.2"
},
{
"status": "affected",
"version": "20.15.4.1_LI_Images"
},
{
"status": "affected",
"version": "20.15.4.1"
},
{
"status": "affected",
"version": "20.18.2_LI_Images"
}
]
}
],
"source": "psirt@cisco.com"
}
],
"cisaActionDue": "2026-04-23",
"cisaExploitAdd": "2026-04-20",
"cisaRequiredAction": "Please adhere to CISA\u2019s guidelines to assess exposure and mitigate risks associated with Cisco SD-WAN devices as outlines in CISA\u2019s Emergency Directive 26-03 (URL listed below in Notes) and CISA\u2019s \u201cHunt \u0026 Hardening Guidance for Cisco SD-WAN Devices (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available.",
"cisaVulnerabilityName": "Cisco Catalyst SD-WAN Manager Incorrect Use of Privileged APIs Vulnerability",
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*",
"matchCriteriaId": "0388BD67-C1AD-4E47-8B1A-22EE1634190E",
"versionEndExcluding": "20.9.8.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*",
"matchCriteriaId": "ADAB32B5-239D-4DC0-BF30-A6D72ACB3710",
"versionEndExcluding": "20.12.5.3",
"versionStartIncluding": "20.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*",
"matchCriteriaId": "D284EA84-6C27-4A9C-BDA2-D1C5BF1F2356",
"versionEndExcluding": "20.15.4.2",
"versionStartIncluding": "20.13",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*",
"matchCriteriaId": "B94E1DC2-5DA5-4238-8040-6D524DDEAA4F",
"versionEndExcluding": "20.18.2.1",
"versionStartIncluding": "20.16",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:cisco:catalyst_sd-wan_manager:20.12.6:*:*:*:*:*:*:*",
"matchCriteriaId": "F5B6E170-73B8-4838-93B4-AD258F3BCA7C",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the API of Cisco Catalyst SD-WAN Manager could allow an authenticated, remote attacker to overwrite arbitrary files on the local file system. To exploit this vulnerability, the attacker must have valid read-only credentials with API access on the affected system.\r\n\r\nThis vulnerability is due to improper file handling on the API interface of an affected system. An attacker could exploit this vulnerability by uploading a malicious file on the local file system. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system\u0026nbsp;and gain vmanage user privileges."
},
{
"lang": "es",
"value": "Una vulnerabilidad en la API de Cisco Catalyst SD-WAN Manager podr\u00eda permitir a un atacante remoto y autenticado sobrescribir archivos arbitrarios en el sistema de archivos local. Para explotar esta vulnerabilidad, el atacante debe tener credenciales v\u00e1lidas de solo lectura con acceso a la API en el sistema afectado.\n\nEsta vulnerabilidad se debe a un manejo inadecuado de archivos en la interfaz de la API de un sistema afectado. Un atacante podr\u00eda explotar esta vulnerabilidad al cargar un archivo malicioso en el sistema de archivos local. Un exploit exitoso podr\u00eda permitir al atacante sobrescribir archivos arbitrarios en el sistema afectado y obtener privilegios de usuario de vmanage."
}
],
"id": "CVE-2026-20122",
"lastModified": "2026-06-17T10:17:09.043",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 2.5,
"source": "psirt@cisco.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 2.5,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-20122",
"options": [
{
"exploitation": "active"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-05T00:00:00+00:00",
"version": "2.0.3"
}
}
]
},
"published": "2026-02-25T17:25:28.170",
"references": [
{
"source": "psirt@cisco.com",
"tags": [
"Vendor Advisory"
],
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v"
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"tags": [
"US Government Resource"
],
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20122"
}
],
"sourceIdentifier": "psirt@cisco.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-648"
}
],
"source": "psirt@cisco.com",
"type": "Secondary"
}
]
}
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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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