CVE-2026-57274— GeoVision GeoWebPlayer Websocket Server connectInfo handler stack-based buffer overflow vulnerability

GeoVision GeoWebPlayer Websocket Server connectInfo handler stack-based buffer overflow vulnerability

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 password field (no key present)

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)

GeoVision GeoWebPlayer 缓冲区错误漏洞

GeoVision GeoWebPlayer是中国GeoVision公司的一款媒体设备的语音视频功能模块。 GeoVision GeoWebPlayer V1.1.1.0版本存在缓冲区错误漏洞，该漏洞源于缓冲区溢出，攻击者可通过控制connectionInfo命令中的JSON字符串导致缓冲区溢出。

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