CVE-2026-57275
GeoVision GeoWebPlayer Websocket Server connectInfo handler stack-based buffer overflow vulnerability
- State
- Published
- Severity
- 8.3 High
- Published
- Jul 2, 2026
- Updated
- Jul 2, 2026
- Reserved
- Jun 24, 2026
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 username field (key present)
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.3 High | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H | GV |
Weaknesses
- CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Affected Products
| Product | Versions |
|---|---|
GeoWebPlayerGeoVision Inc. |
|
References
- https://www.geovision.com.tw/cyber_security.phpvendor-advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2026-2375third-party-advisory
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