Static RSA Private Key Vulnerability in Lighttpd Web Server by GeoVision
CVE-2026-18753

9.1CRITICAL

Key Information:

Vendor

Geovision Inc.

Status
Gv-as1620 (as-manager)
Vendor
CVE Published:
4 August 2026

What is CVE-2026-18753?

The Lighttpd web server firmware by GeoVision contains a static RSA private key used for TLS termination, which is embedded within the software. This exposure compromises both the confidentiality and integrity of HTTPS communications. Malicious actors could exploit this vulnerability to decrypt secure traffic and potentially spoof servers, leading to unauthorized access and data breaches.

Affected Version(s)

GV-AS1620 (AS-Manager) Linux V2.07

GV-AS1620 (AS-Manager) Linux V2.08

References

https://www.geovision.com.tw/cyber_security.php
vendor-advisory

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Lloyd Lexter Gealon
.