CVE-2026-66148 Command injection in GMS
Low-privileged local users can execute system commands with root privileges via the GMS Command-Line Interface.
- 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-2026-66148?
CVE-2026-66148 is a medium-severity command injection vulnerability in SonicWall GMS, published on 11 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An authenticated command injection vulnerability was identified in GMS Command-Line Interface (CLI) 9.5.1 (Build 9510.1044) and earlier versions which allows low-privileged local user to execute system commands with root privileges.
Weakness: CWE-94
Which versions are affected by CVE-2026-66148?
How do I fix CVE-2026-66148?
No fix has been published for CVE-2026-66148 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-2026-66148 being exploited?
There is no known exploitation of CVE-2026-66148 in the wild and no public exploit code.
Sources
Also known as GHSA-5x5c-7gj2-vq4p.