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CVE-2026-20126

Cisco Catalyst SD-WAN Manager Privilege Escalation Vulnerability

Published: Feb 25, 2026Updated: Mar 4, 2026 Sources: CVE List NVD BDUCWE-648
NVD MITRE
8.8CVSSHIGH
EPSS Score
0.3%
Top 78.6%
CISA KEV
Not in KEV
Exploits
0 Known
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-648

Affected Products

catalyst sd-wan managercisco
On-premNetwork Device
Networking Infrastructure / network-management
Catalyst SD-WAN ManagerCisco Systems Inc.
On-premNetwork Device
Networking Infrastructure / vpn-gateway
Cisco Catalyst SD-WAN ManagerCisco
On-premNetwork Device
Networking Infrastructure / router-switch
ciscocommercialUSNetworking Infrastructureaka cisco systems, cisco systems inc.
cisco systems inc.commercialUSNetworking Infrastructureaka cisco systems, cisco

Exploitability

0 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v
sec.cloudapps.cisco.com

Timeline

Published
Feb 25, 2026
Last Updated
Mar 4, 2026

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