CVE-2026-76437 Cisco Smart Software Manager On-Prem Command Injection Vulnerability
Authenticated administrators can execute arbitrary OS commands with root privileges via improper input validation in the web interface.
- 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-2026-76437?
CVE-2026-76437 is a medium-severity command injection vulnerability in Cisco License On-Prem, published on 7 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A vulnerability in the web-based user interface of Cisco License On-Prem, formerly Cisco Smart Software Manager On-Prem (SSM On-Prem), could allow an authenticated, remote attacker to execute arbitrary commands on the underlying operating system. This vulnerability is due to improper validation of user-supplied content within configurations that are submitted to the web-based management interface. An attacker could exploit this vulnerability by updating configurations within the web-based management interface. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system with root privileges. To exploit this vulnerability, the attacker must have valid administrative credentials. Because only an attacker who already holds system administrator privileges can exploit the vulnerability, the only additional privileges gained include the ability to turn off the system, which an administrative user could not normally do.
Weakness: CWE-78
Which versions are affected by CVE-2026-76437?
How do I fix CVE-2026-76437?
No fix has been published for CVE-2026-76437 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-2026-76437 being exploited?
There is no known exploitation of CVE-2026-76437 in the wild and no public exploit code.
Sources
Also known as GHSA-v4f9-w3g4-pjqg.