CVE-2025-2704

State: Published
Severity: 7.5 High
Published: Apr 2, 2025
Updated: Oct 23, 2025
Reserved: Mar 24, 2025

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

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-754 Improper Check for Unusual or Exceptional Conditions

Affected Products

Product	Versions
OpenVPNOpenVPN	2.6.1 through 2.6.13Affected

References

https://community.openvpn.net/openvpn/wiki/CVE-2025-2704vendor-advisory
https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00142.htmlrelease-notes
http://www.openwall.com/lists/oss-security/2025/04/02/5

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