Buffer Overflow Vulnerability in GeoWebPlayer Plugin by GeoVision
CVE-2026-57277

8.3HIGH

Key Information:

Vendor

Geovision Inc.

Status
Geowebplayer
Vendor
CVE Published:
2 July 2026

What is CVE-2026-57277?

The GeoWebPlayer plugin installed with various GeoVision software—including GV-VMS and VMS-Cloud—features a websocket server that significantly expands the functionalities of its web interfaces. However, it contains a vulnerability that arises from the 'handle_connection_info' function, which utilizes manual byte-by-byte loops for copying attacker-controlled JSON strings into fixed-size buffers. This implementation flaw can lead to potential buffer overflow attacks, which may compromise system integrity and expose sensitive data.

Affected Version(s)

GeoWebPlayer Windows V1.1.1.0

GeoWebPlayer Windows V1.1.3.0

References

https://www.geovision.com.tw/cyber_security.php
vendor-advisory
https://talosintelligence.com/vulnerability_reports/TALOS...
third-party-advisory

CVSS V3.1

Score:
8.3
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Philippe Laulheret of Cisco Talos
Kelly Patterson of Cisco Talos
Robert Sherwin of Cisco Talos
.