CVE-2026-7372

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 v3 9.0 CRITICAL

9.0^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 2.2 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://talosintelligence.com/vulnerability_reports/	Third Party Advisory
https://www.geovision.com.tw/cyber_security.php	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:geovision:gv-vms_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:geovision:gv-vms:20:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-04 01:16

Updated : 2026-06-17 11:02

NVD link : CVE-2026-7372

Mitre link : CVE-2026-7372

CVE.ORG link : CVE-2026-7372

JSON object : View

Products Affected

geovision

gv-vms
gv-vms_firmware

CWE

CWE-787

Out-of-bounds Write

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