CVE-2026-57278: 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 callhandleconnectioninfo contains multiple instances of string copy that can overflow. The function handleconnectinfo 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 Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
GeoVision GeoWebPlayer Websocket Server (Web Plugin/WS Player)to a version that resolves this vulnerability.Fixed in V1.1.3.0
Event History
Frequently Asked Questions
What is the severity of CVE-2026-57278?
The severity of CVE-2026-57278 is high with a score of 8.3.
How do I fix CVE-2026-57278?
To fix CVE-2026-57278, update to the latest version of GeoVision GeoWebPlayer Websocket Server that addresses the buffer overflow vulnerability.
What is the risk associated with CVE-2026-57278?
CVE-2026-57278 has a risk rating of 71, indicating significant potential for exploitation.
What type of vulnerability is CVE-2026-57278?
CVE-2026-57278 is a buffer overflow vulnerability affecting the connectInfo handler of the GeoWebPlayer Websocket Server.
Which software is affected by CVE-2026-57278?
CVE-2026-57278 affects the GeoVision GeoWebPlayer Websocket Server, used with various GeoVision software including GV-VMS and GV-Cloud.