Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Geovision | Gv-Vms Firmware | < 21.0.0 |
| Geovision | Gv-Vms | 20 |
Related Weaknesses (CWE)
References
- https://talosintelligence.com/vulnerability_reports/Third Party Advisory
- https://www.geovision.com.tw/cyber_security.phpVendor Advisory
FAQ
What is CVE-2026-7372?
CVE-2026-7372 is a vulnerability with a CVSS score of 9.0 (CRITICAL). 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...
How severe is CVE-2026-7372?
CVE-2026-7372 has been rated CRITICAL with a CVSS base score of 9.0/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-7372?
Check the references section above for vendor advisories and patch information. Affected products include: Geovision Gv-Vms Firmware, Geovision Gv-Vms.