Symlink Attack Affecting OpenVPN/openvpn3-linux package, versions [20,24.1)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.02% (4th percentile)

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  • Snyk IDSNYK-UNMANAGED-OPENVPNOPENVPN3LINUX-10575546
  • published2 Jul 2025
  • disclosed19 May 2025
  • creditUnknown

Introduced: 19 May 2025

CVE-2025-3908  (opens in a new tab)
CWE-59  (opens in a new tab)

How to fix?

Upgrade OpenVPN/openvpn3-linux to version 24.1 or higher.

Overview

Affected versions of this package are vulnerable to Symlink Attack via the configuration initialization tool. An attacker can change the ownership and permissions of any directory by creating symlinks that point to the desired target directory. This is only exploitable if the attacker has local access to the system.

CVSS Base Scores

version 4.0
version 3.1