Untrusted search path in OpenVPN Server - CVE-2026-84226
Published: September 5, 2026
Vulnerability identifier: #VU147007
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-84226
CWE-ID: CWE-426
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause OpenVPN to invoke an unintended executable.
The vulnerability exists due to an untrusted search path in tapctl when invoking netsh.exe. A local user can influence executable resolution to cause OpenVPN to invoke an unintended executable.
Affected software
OpenVPN Server
How to mitigate CVE-2026-84226
Install security update from vendor's website.
OpenVPN Server - update to 2.7.7