CVE-2026-57277
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. 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 key field
INFO
Published Date :
July 2, 2026, 2:25 a.m.
Last Modified :
July 2, 2026, 2:25 a.m.
Remotely Exploit :
Yes !
Source :
GV
Affected Products
The following products are affected by CVE-2026-57277
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 0df08a0e-a200-4957-9bb0-084f562506f9 |
Solution
- Validate lengths of incoming JSON strings.
- Apply memory safety updates to the websocket server.
- Update GeoVision software to the latest version.
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The following list is the news that have been mention
CVE-2026-57277 vulnerability anywhere in the article.