Improper Certificate Validation in Gaia - CVE-2026-85102
Published: September 10, 2026 / Updated: September 22, 2026
Vulnerability identifier: #VU148941
CSH Severity: Critical
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-85102
CWE-ID: CWE-295
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to improper validation of certificate data in the Remote Access and Site-to-Site VPN functionality when negotiating VPN connections. A remote attacker can send specially crafted certificate data during VPN negotiation to execute arbitrary code.
Affected software
Gaia
How to mitigate CVE-2026-85102
Install security update from vendor's website.
Gaia - addressed in versions R81.20 Take 166, R82 Take 126, R82.10 Take 44, R82.20