CVE-2026-20288 Cisco IMC Remote Code Execution Vulnerability Remote Code Execution Vulnerability
Authenticated admin attackers can execute arbitrary commands as root via the Cisco IMC web interface due to improper input validation.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-20288?
CVE-2026-20288 is a medium-severity command injection vulnerability in Cisco Unified Computing System, published on 5 Aug 2026. An attacker needs administrator access to exploit it, 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 Admin 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. Cisco has assigned this vulnerability a SIR of High rather than Medium as the score indicates because additional security implications could occur when the attacker becomes root.
Weakness: CWE-146
Which versions are affected by CVE-2026-20288?
It affects 2 products.
Products include Cisco Unified Computing System, Cisco Unified Computing System E-Series Software.
How do I fix CVE-2026-20288?
No fix has been published for CVE-2026-20288 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-2026-20288 being exploited?
There is no known exploitation of CVE-2026-20288 in the wild and no public exploit code.
Other vulnerabilities in Cisco Unified Computing System
- CVE-2026-20200 Cisco Integrated Management Controller Argument Injection and Remote Code Execution Vulnerability
- CVE-2026-20094 Cisco Integrated Management Controller Command Injection Vulnerability
- CVE-2018-0430 Cisco Integrated Management Controller Command Injection Vulnerability
- CVE-2018-0431 Cisco Integrated Management Controller Command Injection Vulnerability
- CVE-2012-4078 Auth bypass in n/a
Sources
Also known as GHSA-424c-37gm-gvcf.