CVEvulnerability

CVE-2026-7372

9.0 CRITICAL Published 2026-05-04 Modified 2026-10-26 Official page ↗
Status
Analyzed
Published
2026-05-04
Last modified
2026-10-26
Assigner
0df08a0e-a200-4957-9bb0-084f562506f9
CVSS 3.1 (0df08a0e-a200-4957-9bb0-084f562506f9)
9.0 CRITICAL — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS 3.1 ([email protected])
9.0 CRITICAL — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Weaknesses
CWE-787

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.

Affected configurations

• geovision gv-vms firmware (< 21.0.0)

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References