CVE-2026-57275
HighCVSS 8.3Exploitation Probability (EPSS)
Low risk20th percentile — higher than 20% of all known CVEs
Summary
The GeoWebPlayer addon (Web Plugin/WS Player) for GeoVision software (GV-VMS, GV-Cloud) contains a buffer overflow vulnerability in the handle_connection_info function. An attacker on localhost can send a crafted websocket request with a username field that copies data into a fixed-size buffer without length checking.
Risk Assessment
Buffer overflow may lead to arbitrary code execution in the context of the plugin process, enabling privilege escalation or system instability in the surveillance environment.
Recommendation
Immediately update GeoVision software to a version containing the fix for CVE-2026-57275. Until patched, restrict websocket interface access to trusted processes only.
Original NVD description (English source)
GeoWebPlayer (also called "Web Plugin" in the GV-VMS documentation and "WS Player" for VMS-Cloud) is an addon that can be installed with various GeoVision software (GV-VMS, GV-Cloud, ...). It creates a websocket server that expands the capabilities of the various web-interfaces provided by the GeoVision software and may be necessary for them to function properly. The Websocket server can accept various commands coming from localhost. One of them, `connectionInfo` is meant to provide the necessary details to connect to a camera. The handler associated with this command that we call`handle_connection_info` contains multiple instances of string copy that can overflow. The function `handle_connect_info` copies attacker-controlled JSON strings into fixed-size buffers using manual byte-by-byte loops that do not enforce length limits. #### Buffer Overflow in username field (key present)