CVE-2025-3908

Severity: medium (CVSS 6.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-05-19 · updated 2026-06-17
Weakness: CWE-59

Description

The configuration initialization tool in OpenVPN 3 Linux v20 through v24 on Linux allows a local attacker to use symlinks pointing at an arbitrary directory which will change the ownership and permissions of that destination directory.

Affected products

OpenVPN 3 Linux: from 20 through 24

References

https://community.openvpn.net/Security%20Announcements/CVE-2025-3908
http://www.openwall.com/lists/oss-security/2025/05/20/2

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