GeoVision GV-VMS V20 WebCam Server Login Stack Overflow RCE

Successful exploitation can result in unauthenticated remote code execution on the affected GeoVision GV-VMS host. Given the assigned CVSS scope change and high confidentiality, integrity, and availability impacts, an attacker could potentially execute arbitrary code in the context of the vulnerable service, leading to full compromise of the application and possible broader compromise of the underlying system, including data exposure, tampering, and service disruption.

Until patching is completed, reduce exposure of the WebCam Server interface by restricting network access to trusted management networks and authorized hosts only, removing direct internet exposure, and placing the service behind segmentation and access controls. Monitor for malformed or unexpected HTTP requests targeting the login functionality and consider temporary disablement of externally reachable WebCam Server features where operationally feasible. The available information does not provide a vendor-specific workaround.

Upgrade GeoVision GV-VMS V20 to a vendor-fixed release that addresses CVE-2026-42370. If a patched version is not yet deployed, prioritize vendor security updates for the affected 20.0.2 release and validate that the WebCam Server component is updated as part of the remediation process. The available information does not specify a precise fixed version beyond indicating that vendor patches were issued.