CVE-2026-20094: Cisco Unified Computing System

High severity, CVSS 8.8. EPSS: 1.1% chance of exploitation in the next 30 days.

A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with read-only privileges to perform command injection attacks on an affected system and execute arbitrary commands as the root user. This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending crafted commands to the web-based management interface of the affected software. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system as the root user.

Affected products

• Cisco Unified Computing System: version 3.1(1d) only; version 3.1(2b) only; version 3.1(2c) only; version 3.1(2d) only; version 3.1(2e) only; version 3.1(2g) only; …
• Cisco Unified Computing System E-Series Software: version 2.0.0 only; version 2.1.0 only; version 2.2.1 only; version 2.2.2 only; version 2.3.1 only; version 2.3.2 only; …

Published 2026-04-01. Last modified 2026-08-28.