What is CVE-2025-3908?

CVE-2025-3908 is a medium-severity vulnerability in Linux Kernel, classified under Improper Link Resolution Before File Access. CVSS score: 6.2/10. Published 2025-05-19.

How severe is CVE-2025-3908?

Medium severity. CVSS v3 base score is 6.2 out of 10.

Vulnerability in Linux Kernel

CVE-2025-3908

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.

EPSS: 0.002 (8.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Linux Linux_kernel
Openvpn 3 Linux — versions v20
Openvpn Openvpn3linux

Weakness classification (CWE)

CWE-59 — Improper Link Resolution Before File Access

References

security@openvpn.net (Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List)

Frequently asked questions

What is CVE-2025-3908?: CVE-2025-3908 is a medium-severity vulnerability in Linux Kernel, classified under Improper Link Resolution Before File Access. CVSS score: 6.2/10. Published 2025-05-19.
How severe is CVE-2025-3908?: Medium severity. CVSS v3 base score is 6.2 out of 10.