CVE-2025-2704

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-04-02 · updated 2026-06-17
Weakness: CWE-754

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

Affected products

OpenVPN: from 2.6.1 through 2.6.13

References

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

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