CVE-2025-11730 Command injection in ATP series firmware
Authenticated administrators can execute arbitrary OS commands via crafted CLI arguments in Zyxel firewall firmware.
- 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-2025-11730?
CVE-2025-11730 is a high-severity command injection vulnerability in Zyxel ATP series firmware, published on 5 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A post‑authentication command injection vulnerability in the Dynamic DNS (DDNS) configuration CLI command in Zyxel ATP series firmware versions from V5.35 through V5.41, USG FLEX series firmware versions from V5.35 through V5.41, USG FLEX 50(W) series firmware versions from V5.35 through V5.41, and USG20(W)-VPN series firmware versions from V5.35 through V5.41 could allow an authenticated attacker with administrator privileges to execute operating system (OS) commands on an affected device by supplying a specially crafted string as an argument to the CLI command.
Weakness: CWE-78
Which versions are affected by CVE-2025-11730?
How do I fix CVE-2025-11730?
No fix has been published for CVE-2025-11730 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-2025-11730 being exploited?
There is no known exploitation of CVE-2025-11730 in the wild and no public exploit code.
Sources
Also known as GHSA-vjp6-rfgp-h63q.