# CVE-2026-57273: GeoVision GeoWebPlayer buffer overflows in connectionInfo handler

Source: https://junglewise.ai/threats/cve-2026-57273-geovision-geowebplayer-buffer-overflows-in-connectioninfo-handler  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-02. Updated: 2026-07-02  
License: CC BY 4.0 with a link back

CVE-2026-57273 · Severity: high · CVSS 8.3 · Published 2026-07-02

GeoWebPlayer is a software component used by GeoVision video management systems to enable camera viewing through web browsers. A security flaw in how this component handles connection requests could allow an attacker to take control of the system by tricking a user into visiting a malicious website. This could lead to unauthorized access to video feeds, data theft, or a complete compromise of the surveillance workstation.

Technologies: [Geovision GeoWebPlayer](https://junglewise.ai/threats/technologies/geowebplayer). Vendors: [Geovision](https://junglewise.ai/threats/vendors/geovision).

## Quick answers

**Is CVE-2026-57273 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-57273 being exploited in the wild.

**How severe is CVE-2026-57273?** 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-2026-57273?** 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-2026-57273 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-57273?** 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

Multiple stack-based buffer overflow vulnerabilities exist in the GeoWebPlayer WebSocket server's 'connectionInfo' handler. The 'handle_connection_info' function utilizes manual byte-by-byte loops to copy attacker-controlled JSON strings (including username, password, key, and IP fields) into fixed-size buffers without performing length validation. An attacker can exploit this by hosting a malicious webpage that sends specially crafted WebSocket messages to the local GeoWebPlayer service (typically listening on localhost). Successful exploitation can lead to arbitrary code execution in the context of the plugin. The vendor has released version 1.1.3.0 to address these issues.

## 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 Cisco Talos

## References

- [https://talosintelligence.com/vulnerability_reports/TALOS-2026-2375](https://talosintelligence.com/vulnerability_reports/TALOS-2026-2375)
- [https://www.geovision.com.tw/cyber_security.php](https://www.geovision.com.tw/cyber_security.php)

## Related threats

- [GeoVision GeoWebPlayer buffer overflow in ip field](https://junglewise.ai/threats/cve-2026-57278-geovision-geowebplayer-buffer-overflow-in-ip-field)
- [GeoVision GeoWebPlayer stack buffer overflow in connectionInfo handler](https://junglewise.ai/threats/cve-2026-57277-geovision-geowebplayer-stack-buffer-overflow-in-connectioninfo)
- [GeoVision GeoWebPlayer buffer overflow in password field of connectionInfo handler](https://junglewise.ai/threats/cve-2026-57276-geovision-geowebplayer-buffer-overflow-in-password-field-of)
- [GeoVision GeoWebPlayer stack buffer overflow in connectionInfo handler](https://junglewise.ai/threats/cve-2026-57275-geovision-geowebplayer-stack-buffer-overflow-in-connectioninfo)
- [GeoVision GeoWebPlayer stack buffer overflow in connectionInfo password field](https://junglewise.ai/threats/cve-2026-57274-geovision-geowebplayer-stack-buffer-overflow-in-connectioninfo)