CVE-2026-30971 ZoneMinder: Authenticated RCE via command injection in monitor Device Path
Authenticated attackers can execute arbitrary commands as the web server user by injecting shell metacharacters into the monitor Device Path field.
- 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-2026-30971?
CVE-2026-30971 is a high-severity command injection vulnerability in zoneminder, published on 16 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
ZoneMinder is a free, open source closed-circuit television software application. Prior to 1.39.2, 1.38.2, and 1.36.40, ZoneMinder interpolates an unvalidated monitor Device field into shell commands in PHP and Perl control paths when an authenticated user with monitor-create or monitor-edit permission saves a Local monitor whose Device Path contains shell metacharacters and the monitor control or startup path runs. In this attack mechanism, the stored Device value reaches Perl qx() and backtick execution before zmdc.pl argument detainting, while separate PHP command paths use bypassable escapeshellcmd defenses. The attacker can execute arbitrary commands as the web server user. This vulnerability is fixed in 1.39.2, 1.38.2, and 1.36.40.
Weakness: CWE-78
Which versions are affected by CVE-2026-30971?
How do I fix CVE-2026-30971?
No fix has been published for CVE-2026-30971 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-2026-30971 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-30971 exists.
Sources
Also known as DEBIAN-CVE-2026-30971, GHSA-g66m-77fq-79v9, UBUNTU-CVE-2026-30971.