CVE-2026-42370: GeoVision GV-VMS V20 WebCam Server Login stack overflow vulnerability

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-04 · updated 2026-10-26
Weakness: 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.

Affected products

GeoVision Inc. GV-VMS V20.0.2: before 21.0.0 — fixed in 21.0.0

How to fix

Upgrade to a fixed version: GeoVision Inc. GV-VMS V20.0.2 21.0.0. Check the vendor advisory for mitigations.

References

https://talosintelligence.com/vulnerability_reports/
https://www.geovision.com.tw/cyber_security.php
https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2369

Get alerted when CVE-2026-42370 or the next vulnerability affects your stack