CVE-2026-20126CWE-648

Cisco Catalyst SD-WAN Manager Privilege Escalation Vulnerability

High · published February 25, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
22.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00312 · 22.9th percentile
Weakness
CWE-648 · Incorrect Use of Privileged APIs
Published
2026-02-25T16:13Z
EPSS history
Timeline
  • 25 FEB 16:13Z
    Cisco Catalyst SD-WAN Manager Privilege Escalation Vulnerability
    cvelistv5