GeoVision GeoWebPlayer up to 1.1.1.0 handle_connect_info buffer overflow

Summaryinfo

A vulnerability identified as critical has been detected in GeoVision GeoWebPlayer up to 1.1.1.0. Affected by this vulnerability is the function handle_connect_info. This manipulation causes buffer overflow. This vulnerability is tracked as CVE-2026-57273. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in GeoVision GeoWebPlayer up to 1.1.1.0 and classified as critical. Affected by this vulnerability is the function handle_connect_info. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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 (no key present)

The weakness was disclosed by Philippe Laulheret. It is possible to read the advisory at geovision.com.tw. This vulnerability is known as CVE-2026-57273 since 06/24/2026. The exploitation appears to be easy. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 1.1.3.0 eliminates this vulnerability.

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Productinfo

Vendor

• GeoVision

Name

• GeoWebPlayer

Version

• 1.1.0
• 1.1.1.0

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