CVE-2026-20099CWE-78

Cisco UCS Manager and FXOS Software Command Injection Vulnerability

Medium · published February 25, 2026

CVSS v3.1
6.7
EPSS
1%
Percentile
51.8
In the wild
Unconfirmed
What it is

A vulnerability in the web-based management interface of Cisco FXOS Software and Cisco UCS Manager Software could allow an authenticated, local attacker with administrative privileges to perform command injection attacks on an affected system and elevate privileges to root. 

This vulnerability is due to insufficient input validation of command arguments supplied by the user. An attacker could exploit this vulnerability by authenticating to a device and submitting crafted input to the affected command. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system of the affected device with root-level privileges.

The record
Technical detail
CVSS v3.1
6.7 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00679 · 51.8th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-02-25T16:25Z
EPSS history
Timeline
  • 25 FEB 16:25Z
    Cisco UCS Manager and FXOS Software Command Injection Vulnerability
    cvelistv5