Is CVE-2026-57277 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-57277 being exploited in the wild.

How severe is CVE-2026-57277?

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-2026-57277?

A patch was published on 2026-04-28: Vendor patch release (v1.1.3.0) Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-57277 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-57277?

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.

CVE-2026-57277: GeoVision GeoWebPlayer stack buffer overflow in connectionInfo handler

CVE-2026-57277 · Severity: high · CVSS 8.3 · Published 2026-07-02

GeoWebPlayer is a browser-based plugin used to view video feeds from GeoVision security cameras and management systems. A security flaw allows an attacker to crash the software or potentially take control of the computer running the plugin by tricking a user into visiting a malicious website. This could lead to unauthorized access to surveillance data or a foothold in the local network.

Technologies: Geovision GeoWebPlayer. Vendors: Geovision.

Quick answers

Is CVE-2026-57277 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-57277 being exploited in the wild.
How severe is CVE-2026-57277?: 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-2026-57277?: A patch was published on 2026-04-28: Vendor patch release (v1.1.3.0) Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-57277 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-57277?: 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

A stack-based buffer overflow exists in the 'handle_connection_info' function of the GeoWebPlayer WebSocket server. The vulnerability is caused by manual byte-by-byte loops that copy attacker-controlled JSON strings into fixed-size buffers without enforcing length limits. Specifically, the 'key' field is copied into a 17-byte buffer (key_blob). An attacker can exploit this by hosting a malicious webpage that sends a specially crafted WebSocket message to the local server (localhost). Successful exploitation can lead to arbitrary code execution in the context of the plugin. The vulnerability is patched in version 1.1.3.0.

Affected products

GeoVision Inc. GeoWebPlayer 1.1.1.0

Timeline

2026-03-25: other: Initial vendor contact
2026-04-21: disclosed: Vendor disclosure
2026-04-28: patched: Vendor patch release (v1.1.3.0)
2026-07-01: advisory: Public release by Talos

References

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