GeoVision GeoWebPlayer up to 1.1.1.0 handle_connect_info buffer overflow

Summaryinfo

A vulnerability classified as critical has been found in GeoVision GeoWebPlayer up to 1.1.1.0. This issue affects the function handle_connect_info. The manipulation leads to buffer overflow. This vulnerability is documented as CVE-2026-57277. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in GeoVision GeoWebPlayer up to 1.1.1.0. It has been rated as critical. This issue affects the function handle_connect_info. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to 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. Impacted is 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 key field

The weakness was released by Philippe Laulheret. It is possible to read the advisory at geovision.com.tw. The identification of this vulnerability is CVE-2026-57277 since 06/24/2026. The exploitation is known 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

CPE 2.3info

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CPE 2.2info

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