{"id":"CVE-2026-57276","aliases":["EUVD-2026-41238","GHSA-m39x-xw5g-mc76"],"status":"published","title":"GeoVision GeoWebPlayer Websocket Server connectInfo handler stack-based buffer overflow vulnerability","description":"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.\n\nThe 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. \n\n\n\n\n#### Buffer Overflow in password field (key present)","severity":{"version":"3.1","score":8.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00401,"percentile":0.34684,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2026-07-02T02:25:09Z","modified":"2026-10-25T21:10:00Z","products":[{"vendor":"geovision inc.","product":"geowebplayer"}],"references":[{"url":"https://www.geovision.com.tw/cyber_security.php","tags":["vendor-advisory"]},{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2026-2375","tags":["third-party-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57276"},{"url":"https://github.com/advisories/GHSA-m39x-xw5g-mc76"}],"sources":{"cve":[{"id":"CVE-2026-57276","title":"GeoVision GeoWebPlayer Websocket Server connectInfo handler stack-based buffer overflow vulnerability","description":"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.\n\nThe 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. \n\n\n\n\n#### Buffer Overflow in password field (key present)","status":"published","published":"2026-07-02T02:25:09.701Z","modified":"2026-07-02T12:32:50.311Z","cvss":[{"version":"3.1","score":8.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T13:43:44.898272Z"}],"euvd":[{"id":"EUVD-2026-41238","description":"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.\n\nThe 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. \n\n\n\n\n#### Buffer Overflow in password field (key present)","status":"published","published":"2026-07-02T02:25:09Z","modified":"2026-07-02T12:32:50Z","cvss":[{"version":"3.1","score":8.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T18:20:17.786883Z"}],"ghsa":[{"id":"GHSA-m39x-xw5g-mc76","title":"GeoWebPlayer (also called \"Web Plugin\" in the GV-VMS documentation and \"WS Player\" for VMS-Cloud)...","description":"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.\n\nThe 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. \n\n\n\n\n#### Buffer Overflow in password field (key present)","status":"published","published":"2026-07-02T06:34:04Z","modified":"2026-07-02T06:34:11Z","cvss":[{"version":"3.1","score":8.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T15:09:10.929571Z"}],"nvd":[{"id":"CVE-2026-57276","description":"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.\n\nThe 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. \n\n\n\n\n#### Buffer Overflow in password field (key present)","status":"published","published":"2026-07-02T04:17:14.763Z","modified":"2026-10-25T21:10:00.77Z","cvss":[{"version":"3.1","score":8.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:12:27.199837Z"}]}}