CVE-2026-20200 Cisco Integrated Management Controller Argument Injection and Remote Code Execution Vulnerability

High 8.8 Published 5 Aug 2026 Updated 16 Sep 2026

Authenticated attackers can inject commands into Cisco IMC to execute arbitrary code and gain root privileges on the underlying operating system.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-20200?

CVE-2026-20200 is a high-severity command injection vulnerability in Cisco Unified Computing System, published on 5 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with low privileges to execute arbitrary commands on the underlying operating system of an affected system and elevate privileges to root.  This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by entering crafted inputs 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. 

Weakness: CWE-141

Which versions are affected by CVE-2026-20200?

It affects 1 product.

Products include Cisco Unified Computing System.

How do I fix CVE-2026-20200?

No fix has been published for CVE-2026-20200 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-20200 being exploited?

There is no known exploitation of CVE-2026-20200 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

All Cisco Unified Computing System vulnerabilities

Sources

Also known as GHSA-xq7x-x23m-gmh8.