CVE-2025-3908 json
The configuration initialization tool in OpenVPN 3 Linux v20 through v24 on Linux allows a local attacker to use symlinks pointing at an ar…
published 2025-05-19 17 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-15743
- cvss
- 6.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 12%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- openvpn3-client Debian 14, Debian 13 24.1+dfsg-1
debian advisories DEBIAN-CVE-2025-3908
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 17 mo ago
Exploit prediction
0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.2 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| CNA | 3.1 | 6.2 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected products
- OpenVPN OpenVPN 3 Linux
Classification
- Weakness
-
- CWE-59 Improper Link Resolution Before File Access
References
-
community.openvpn.net
/Security%20Announcements/CVE-2025-3908
vendor-advisory
-
openwall.com
/lists/oss-security/2025/05/20/2
mailing-list
Sources
- CVE List CVE-2025-3908
- NVD CVE-2025-3908
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.