Catalyst Sd Wan Manager
CVE-2026-20126
HIGH
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
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.
AnalysisAI
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).
Technical ContextAI
affects Catalyst Sd-Wan Manager. 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.
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
More in Catalyst Sd Wan Manager
View allCisco Catalyst SD-WAN Controller and Manager contain a critical authentication bypass (CVE-2026-20127, CVSS 10.0) in the
A vulnerability in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to gain elevated privil
Authentication bypass in Cisco Catalyst SD-WAN Manager API allows unauthenticated remote access to the management platfo
A vulnerability in the Security Assertion Markup Language (SAML) APIs of Cisco Catalyst SD-WAN Manager Software could al
Multiple vulnerabilities in Cisco SD-WAN vManage Software could allow an unauthenticated, remote attacker to execute arb
Multiple vulnerabilities in Cisco SD-WAN vManage Software could allow an unauthenticated, remote attacker to execute arb
Multiple vulnerabilities in Cisco SD-WAN products could allow an unauthenticated, remote attacker to execute attacks aga
Multiple vulnerabilities in Cisco SD-WAN products could allow an unauthenticated, remote attacker to execute attacks aga
A vulnerability in the request authentication validation for the REST API of Cisco SD-WAN vManage software could allow a
A vulnerability in the binding configuration of Cisco SD-WAN vManage Software containers could allow an unauthenticated,
Multiple vulnerabilities in Cisco SD-WAN vManage Software could allow an unauthenticated, remote attacker to execute arb
Multiple vulnerabilities in Cisco SD-WAN vManage Software could allow an unauthenticated, remote attacker to execute arb
Same weakness CWE-648 – Incorrect Use of Privileged APIs
View allShare
External POC / Exploit Code
Leaving vuln.today