Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-7372

Gravedad CVSS v3.1:
CRÍTICA
Tipo:
CWE-787 Escritura fuera de límites
Fecha de publicación:
04/05/2026
Última modificación:
05/05/2026

Descripción

*** Pendiente de traducción *** 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.<br /> <br /> #### Stack-overflow via unconstrained sscanf<br /> <br /> The call to `sscanf` at [1] to split the `Buffer` variable into the `username` and `password` variables doesn&amp;#39;t limit the size of the extracted content to match the destination buffers&amp;#39; 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. <br /> <br /> <br /> <br /> 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.

Productos y versiones vulnerables

CPE Desde Hasta
cpe:2.3:o:geovision:gv-vms_firmware:*:*:*:*:*:*:*:* 21.0.0 (excluyendo)
cpe:2.3:h:geovision:gv-vms:20:*:*:*:*:*:*:*