OS Command Injection in Cisco UCS - CVE-2026-20036
Published: February 26, 2026
Vulnerability identifier: #VU123281
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-20036
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco UCS
Cisco UCS
Detailed vulnerability description
The vulnerability allows a remote user to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation in the CLI and web-based management interface. A remote privileged user can pass specially crafted data to the application and execute arbitrary OS commands on the target system.
How to mitigate CVE-2026-20036
Install updates from vendor's website.