CVE-2026-57268
Received Received - Intake

Out-of-Bounds Write in GeoWebPlayer saveVideo Command

Publication date: 2026-07-02

Last updated on: 2026-07-02

Assigner: 0df08a0e-a200-4957-9bb0-084f562506f9

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. Many of the commands will take an `index` value that is then used to access various arrays to enter critical sections, perform various actions via function calls, etc. However the `index` value is usually not checked for valid range, and as such it can be used to access multiple arrays out-of-bound. ### saveVideo command index-out-of-bound When sending the `saveVideo` command, the `index` field is extracted from the websocket message [1]. Then without checking the range of the index, it is used to trigger a CriticalSection ([2]) and releases it [3]. The release function call ([3]) is executed using a function pointer which will be read out of bounds potentially leading to code execution: v6 = get_entry(a2, "index"); result = json_is_value_int(v6); if ( (_BYTE)result ) { v8 = get_entry(a2, "index"); index = json_value_to_int(&v8->value); // [1] result = CCriticalSection::EnterCritSection(&this->crit_sections[index]); //[2] if ( result ) { if ( this->array_of_IPCams[index] ) { if ( this->array_of_IPCams[index]->field_20 ) do_PostMessageA((CViewer *)this->array_of_IPCams[index], 0x111u, 0x139Fu, v11); } return (*(int (__thiscall **)(CCriticalSection *))(this->crit_sections[index].vtbl + 20))(&this->crit_sections[index]); //[3] } }

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Meta Information

Published
2026-07-02
Last Modified
2026-07-02
Generated
2026-07-02
AI Q&A
2026-07-02
EPSS Evaluated
N/A
NVD
CVE-2026-57268
EUVD
EUVD-2026-41230

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
geovision geowebplayer *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-129 The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.

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Executive Summary

This vulnerability exists in GeoWebPlayer, an addon for GeoVision software, which creates a websocket server to expand web-interface capabilities. The server accepts commands from localhost, many of which use an 'index' value to access arrays. However, the 'index' is not properly checked for valid range, allowing out-of-bound array access.

Specifically, when the 'saveVideo' command is sent, the 'index' is extracted from the websocket message and used without validation to enter and release a critical section. The release function is called via a function pointer read from the out-of-bound array index, potentially leading to arbitrary code execution.

Detection Guidance

This vulnerability involves the GeoWebPlayer websocket server accepting commands from localhost, specifically the 'saveVideo' command with an 'index' parameter that is not properly range-checked.

Detection could involve monitoring websocket traffic on the local system for 'saveVideo' commands containing out-of-bound 'index' values.

Since the vulnerability is triggered by sending a 'saveVideo' command with an invalid 'index' via the websocket server, detection commands could include inspecting websocket messages locally or using debugging tools to monitor calls to the critical section functions.

However, no specific detection commands or network signatures are provided in the available information.

Mitigation Strategies

Immediate mitigation steps are not explicitly detailed in the provided information.

General best practices would include restricting access to the GeoWebPlayer websocket server to trusted localhost processes only, ensuring that untrusted users cannot send commands to it.

Additionally, monitoring and limiting the use of the 'saveVideo' command or disabling the GeoWebPlayer addon if not required could reduce risk.

Applying any available patches or updates from the vendor once released would be essential.

Impact Analysis

This vulnerability can have severe impacts because it allows an attacker to perform out-of-bound array access leading to potential arbitrary code execution on the affected system.

Given the CVSS score of 8.3 with high impact on confidentiality, integrity, and availability, exploitation could result in full compromise of the system running GeoWebPlayer, including unauthorized control, data manipulation, or denial of service.

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