A stack overflow vulnerability has been identified in the WebCam Server Login functionality of GeoVision GV-VMS V20 20.0.2. The vulnerability allows attackers to execute arbitrary code through specially crafted HTTP requests. The flaw can be exploited without authentication, making it particularly dangerous. Attackers can trigger the vulnerability by sending malicious HTTP requests to the affected system. This represents a critical security issue for organizations using GeoVision's video management system.