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CVE-2026-20126

Catalyst SD-WAN Manager

Cisco CVSS 8.8 Updated March 16, 2026

Executive Risk Summary

"A vulnerability in Cisco Catalyst SD-WAN Manager could allow an authenticated, local attacker with low privileges to gain root privileges on the underlying operating system. This vulnerability is due to an insufficient user authentication mechanism in the REST API."

Operational Audit Arsenal

Target Type Firmware
Target Asset Cisco Catalyst SD-WAN Manager
Standard Path https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v

Manual Verification Required

This is a non-Windows asset (Cisco). Use the target asset details and official path provided above to verify your current version against the official vendor advisories listed below.

Patch Impact Forecast

Reboot Required Likely

Potential disruption to network services during patching

Internal Work Notes

CVE-2026-20126: Catalyst SD-WAN Manager vulnerability allowing low-privilege attackers to gain root access, patching required to prevent exploitation

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