CVE-2026-20126
HIGHCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2Description
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. An attacker could exploit this vulnerability by sending a request to the REST API of the affected system. A successful exploit could allow the attacker to gain root privileges on the underlying operating system.
Analysis
Catalyst Sd-Wan Manager contains a vulnerability that allows attackers to an authenticated, local attacker with low privileges to gain root privileges on (CVSS 8.8).
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Remediation
Within 24 hours: Inventory all Catalyst SD-WAN Manager instances and restrict access to trusted administrators only. Within 7 days: Implement enhanced monitoring for suspicious privilege escalation attempts and review access logs for unauthorized activity. …
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External POC / Exploit Code
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