CVE-2026-57266: GeoVision GeoWebPlayer out-of-bounds access in 2wayAudio command

CVE-2026-57266 · Severity: high · CVSS 8.3 · Published 2026-07-02

GeoWebPlayer is a software plugin used with GeoVision video management systems to enable web-based video playback and communication features. A security vulnerability in this plugin allows an attacker to potentially take control of a user's computer if the user visits a malicious website. This could lead to unauthorized access to surveillance data, system outages, or the theft of sensitive information.

Technologies: Geovision GeoWebPlayer. Vendors: Geovision.

Quick answers

Is CVE-2026-57266 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-57266 being exploited in the wild.
How severe is CVE-2026-57266?
High severity, with a CVSS score of 8.3, published 2 July 2026.
Which products and versions are affected?
Geovision GeoWebPlayer 1.1.1.0.
Is there a fix for CVE-2026-57266?
A patch was published on 2026-07-02: Version 1.1.3.0 listed as unaffected/fixed Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-57266 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-57266?
Check whether you run Geovision GeoWebPlayer at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An out-of-bounds read/write vulnerability exists in the WebSocket server component of GeoVision GeoWebPlayer version 1.1.1.0. The '2wayAudio' command fails to validate the 'index' field provided in the JSON payload before using it to access internal arrays. An attacker can exploit this by hosting a malicious webpage that sends a specially crafted WebSocket message to the local GeoWebPlayer service. This can result in the execution of arbitrary code via an out-of-bounds function pointer call or memory corruption. The vulnerability is addressed in version 1.1.3.0.

Affected products

  • GeoVision Inc. GeoWebPlayer 1.1.1.0

Timeline

  • 2026-07-01: disclosed: Initial discovery by Cisco Talos
  • 2026-07-02: advisory: NVD publication date
  • 2026-07-02: patched: Version 1.1.3.0 listed as unaffected/fixed

References

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