Vulnerability · Published Jul 2, 2026 · Assigned by GV
CVE-2026-57278GeoVision GeoWebPlayer Websocket Server connectInfo handler stack-based buffer overflow vulnerability
High 8.3
In plain English
A high-severity buffer overflow in GeoWebPlayer from GeoVision Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities).
Official 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. 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 ip field
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| GeoVision Inc. | GeoWebPlayer | V1.1.1.0 |
Weakness: CWE-120 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
References
- https://www.geovision.com.tw/cyber_security.php vendor-advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2026-2375 third-party-advisory