CVE-2026-7372 GeoVision GV-VMS V20 WebCam Server Login stack overflow vulnerability
Unauthenticated attackers can achieve SYSTEM-level code execution via a stack overflow in the WebCam Server login functionality.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-7372?
CVE-2026-7372 is a critical memory corruption vulnerability in GeoVision Inc. GV-VMS V20.0.2, published on 4 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A stack overflow vulnerability exists in the WebCam Server Login functionality of GeoVision GV-VMS V20 20.0.2. A specially crafted HTTP request can lead to an arbitrary code execution. An attacker can make an unauthenticated HTTP request to trigger this vulnerability.
#### Stack-overflow via unconstrained sscanf
The call to `sscanf` at [1] to split the `Buffer` variable into the `username` and `password` variables doesn't limit the size of the extracted content to match the destination buffers' sizes. In this case, if either the username or password decoded from the authorization string exceeds `40` characters (the size the stack variables `username` and `password`) then a stack overflow will occur.
The data is controlled by an attacker, but sronger constraints (e.g. no null bytes) may make exploitation harder. A successful attack could lead to full code execution as SYSTEM on the machine running the service.
Weakness: CWE-787
Which versions are affected by CVE-2026-7372?
It affects 1 product.
Products include Geovision Gv-Vms Firmware.
How do I fix CVE-2026-7372?
No fix has been published for CVE-2026-7372 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-7372 being exploited?
There is no known exploitation of CVE-2026-7372 in the wild and no public exploit code.
Other vulnerabilities in GeoVision Inc. GV-VMS V20.0.2
Sources
Also known as GHSA-hr8m-7mwf-v24x.