CVE-2026-20210CWE-779

Cisco Catalyst SD-WAN Manager Privilege Escalation Vulnerability

Medium · published May 14, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
9.2
In the wild
Unconfirmed
What it is

A vulnerability in the web UI of Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an authenticated, remote attacker with read-only permissions to modify configurations and perform unauthorized actions on an affected system.

This vulnerability exists because of a failure to redact sensitive information within device configurations and templates. An attacker could exploit this vulnerability by elevating their read-only permissions to those of a high-privileged user. A successful exploit could allow the attacker to access or modify configuration settings within Cisco Catalyst SD-WAN Manager as a high-privileged user.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00194 · 9.2th percentile
Weakness
CWE-779 · Logging of Excessive Data
Published
2026-05-14T16:08Z
EPSS history
Timeline
  • 14 MAY 16:08Z
    Cisco Catalyst SD-WAN Manager Privilege Escalation Vulnerability
    cvelistv5