CVE-2025-2704
7.5
HIGH
CVSS 3.1
EPSS 0.52%
Description
OpenVPN version 2.6.1 through 2.6.13 in server mode using TLS-crypt-v2 allows remote attackers to trigger a denial of service by corrupting and replaying network packets in the early handshake phase
How to fix CVE-2025-2704
To remediate CVE-2025-2704, upgrade the affected package to a fixed version below.
- Alpine/openvpn—upgrade to 2.6.16-r0 or later
- Debian/openvpn—upgrade to 2.6.3-1+deb12u3 or later
Is CVE-2025-2704 being exploited?
Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 2.6.16-r0
- from 0, < 2.6.3-1+deb12u3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |