CVE-2026-20126: Cisco Catalyst SD-WAN Manager Privilege Escalation Vulnerability
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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-20126?
CVE-2026-20126 is rated as a high severity vulnerability due to the potential for privilege escalation.
How do I fix CVE-2026-20126?
To fix CVE-2026-20126, update the Cisco Catalyst SD-WAN Manager to the latest version provided by Cisco.
Who is affected by CVE-2026-20126?
CVE-2026-20126 affects users of Cisco Catalyst SD-WAN Manager with authenticated, low-privilege access.
What types of attacks can exploit CVE-2026-20126?
CVE-2026-20126 can be exploited by authenticated local attackers seeking to gain root privileges.
What is the underlying cause of CVE-2026-20126?
The underlying cause of CVE-2026-20126 is insufficient user authentication that allows privilege escalation.