CVE catalog

CVE-2025-2704

OpenVPN vulnerability

Severity: Medium · CVSS 5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: Apr 2, 2025, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.83% · Oct 25, 2026

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

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	openvpn	sid	`2.7.8-1`	fixed
Debian	openvpn	forky	`2.7.8-1`	fixed
Debian	openvpn	trixie	`2.6.14-1+deb13u3`	fixed
Debian	openvpn	trixie-security	`2.6.14-1+deb13u3`	fixed
Debian	openvpn	bookworm	`2.6.14-0+deb12u2`	fixed
Debian	openvpn	bookworm-security	`2.6.14-0+deb12u2`	fixed
Ubuntu	openvpn	noble	`2.6.3-1+deb12u3`	fixed
Ubuntu	openvpn	noble	`2.6.12-0ubuntu0.24.04.3`	fixed
Alpine	openvpn	3.19	`2.6.16-r0`	fixed
Alpine	openvpn	3.20	`2.6.16-r0`	fixed
Alpine	openvpn	3.21	`2.6.14-r0`	fixed
Alpine	openvpn	3.22	`2.6.14-r0`	fixed
Alpine	openvpn	3.23	`2.6.14-r0`	fixed
Alpine	openvpn	3.24	`2.6.14-r0`	fixed
Suse	openvpn	linux enterprise module for basesystem 15 sp7	`2.6.8-150600.3.17.1`	fixed
Suse	openvpn-dco	linux enterprise module for basesystem 15 sp7	`2.6.8-150600.3.17.1`	fixed
Ubuntu	openvpn	24.04	`2.6.5-0ubuntu1`	vulnerable
Ubuntu	openvpn	24.04	`2.6.7-1ubuntu1`	vulnerable
Ubuntu	openvpn	24.04	`2.6.9-1ubuntu2`	vulnerable
Ubuntu	openvpn	24.04	`2.6.9-1ubuntu3`	vulnerable
Ubuntu	openvpn	24.04	`2.6.9-1ubuntu4`	vulnerable
Ubuntu	openvpn	24.04	`2.6.9-1ubuntu4.1`	vulnerable
Ubuntu	openvpn	24.04	`2.6.12-0ubuntu0.24.04.1`	vulnerable
Ubuntu	openvpn	24.04	`2.6.12-0ubuntu0.24.04.3`	fixed
Ubuntu	openvpn	24.04	`2.6.5-0ubuntu1`	vulnerable
Ubuntu	openvpn	24.04	`2.6.7-1ubuntu1`	vulnerable
Ubuntu	openvpn	24.04	`2.6.9-1ubuntu2`	vulnerable
Ubuntu	openvpn	24.04	`2.6.9-1ubuntu3`	vulnerable
Ubuntu	openvpn	24.04	`2.6.9-1ubuntu4`	vulnerable
Ubuntu	openvpn	24.04	`2.6.9-1ubuntu4.1`	vulnerable
Ubuntu	openvpn	24.04	`2.6.12-0ubuntu0.24.04.1`	vulnerable
Ubuntu	openvpn	24.04	`2.6.12-0ubuntu0.24.04.3`	fixed
Suse	openvpn	linux enterprise module for basesystem 15 sp6	`2.6.8-150600.3.17.1`	fixed
Suse	openvpn-dco	linux enterprise module for basesystem 15 sp6	`2.6.8-150600.3.17.1`	fixed
Opensuse	openvpn	leap 15.6	`2.6.8-150600.3.17.1`	fixed
Opensuse	openvpn-dco	leap 15.6	`2.6.8-150600.3.17.1`	fixed
Opensuse	openvpn	tumbleweed	`2.6.14-1.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	openvpn	source	sid	`2.6.14-1`	not yet assigned	Not reported	[1101935]
Debian	openvpn	source	forky	`2.6.14-1`	not yet assigned	Not reported	[1101935]
Debian	openvpn	source	trixie	`2.6.14-1`	not yet assigned	Not reported	[1101935]
Debian	openvpn	source	bookworm	`2.6.3-1+deb12u3`	not yet assigned	Not reported	[1101935]
Ubuntu	openvpn	deb	noble	`2.6.3-1+deb12u3`	Not reported	Not reported	Not reported
Ubuntu	openvpn	deb	noble	`2.6.12-0ubuntu0.24.04.3`	Not reported	Not reported	Not reported
Alpine	openvpn	apk	3.19	`2.6.16-r0`	Not reported	ALPINE-CVE-2025-2704	Not reported
Alpine	openvpn	apk	3.20	`2.6.16-r0`	Not reported	ALPINE-CVE-2025-2704	Not reported
Alpine	openvpn	apk	3.21	`2.6.14-r0`	Not reported	ALPINE-CVE-2025-2704	Not reported
Alpine	openvpn	apk	3.22	`2.6.14-r0`	Not reported	ALPINE-CVE-2025-2704	Not reported
Alpine	openvpn	apk	3.23	`2.6.14-r0`	Not reported	ALPINE-CVE-2025-2704	Not reported
Alpine	openvpn	apk	3.24	`2.6.14-r0`	Not reported	ALPINE-CVE-2025-2704	Not reported
Suse	openvpn	rpm	linux enterprise module for basesystem 15 sp7	`2.6.8-150600.3.17.1`	Not reported	SUSE-SU-2025:01508-1	Not reported
Suse	openvpn-dco	rpm	linux enterprise module for basesystem 15 sp7	`2.6.8-150600.3.17.1`	Not reported	SUSE-SU-2025:01508-1	Not reported
Ubuntu	openvpn	deb	24.04	`2.6.12-0ubuntu0.24.04.3`	Not reported	USN-7411-1	Not reported
Ubuntu	openvpn	deb	24.04	`2.6.12-0ubuntu0.24.04.3`	Not reported	UBUNTU-CVE-2025-2704	Not reported
Suse	openvpn	rpm	linux enterprise module for basesystem 15 sp6	`2.6.8-150600.3.17.1`	Not reported	SUSE-SU-2025:1508-1	Not reported
Suse	openvpn-dco	rpm	linux enterprise module for basesystem 15 sp6	`2.6.8-150600.3.17.1`	Not reported	SUSE-SU-2025:1508-1	Not reported
Opensuse	openvpn	rpm	leap 15.6	`2.6.8-150600.3.17.1`	Not reported	SUSE-SU-2025:1508-1	Not reported
Opensuse	openvpn-dco	rpm	leap 15.6	`2.6.8-150600.3.17.1`	Not reported	SUSE-SU-2025:1508-1	Not reported
Opensuse	openvpn	rpm	tumbleweed	`2.6.14-1.1`	Not reported	OPENSUSE-SU-2025:14979-1	Not reported

[Debian bug #1101935]

OpenFactory catalog packages

[openSUSE Tumbleweed]

[openvpn-auth-pam-plugin]Unknown
Source package: [openvpn]
Details (1)
- 2.7.5-1.1 · x86_64 · tumbleweed
  Unknown · Fixed: 2.6.14-1.1
  Version impact unknown
  usn · openvpn · opensuse · tumbleweed
[openvpn-devel]Unknown
Source package: [openvpn]
Details (1)
- 2.7.5-1.1 · x86_64 · tumbleweed
  Unknown · Fixed: 2.6.14-1.1
  Version impact unknown
  usn · openvpn · opensuse · tumbleweed
[openvpn-down-root-plugin]Unknown
Source package: [openvpn]
Details (1)
- 2.7.5-1.1 · x86_64 · tumbleweed
  Unknown · Fixed: 2.6.14-1.1
  Version impact unknown
  usn · openvpn · opensuse · tumbleweed
[openvpn]Fixed
Source package: [openvpn]
Details (1)
- 2.7.5-1.1 · x86_64 · tumbleweed
  Fixed · Fixed: 2.6.14-1.1
  usn · openvpn · opensuse · tumbleweed

[Debian 12 (Bookworm)]

[openvpn]Fixed
Details (4)
- 2.6.14-0+deb12u2 · amd64 · bookworm
  Fixed · Fixed: 2.6.3-1+deb12u3
  usn · openvpn · debian · bookworm; usn · openvpn · debian · 12
- 2.6.14-0+deb12u2 · arm64 · bookworm
  Fixed · Fixed: 2.6.3-1+deb12u3
  usn · openvpn · debian · bookworm; usn · openvpn · debian · 12
- 2.6.14-0+deb12u2 · amd64 · bookworm-security
  Fixed · Fixed: 2.6.3-1+deb12u3
  usn · openvpn · debian · bookworm; usn · openvpn · debian · 12
- 2.6.14-0+deb12u2 · arm64 · bookworm-security
  Fixed · Fixed: 2.6.3-1+deb12u3
  usn · openvpn · debian · bookworm; usn · openvpn · debian · 12

[Debian 13 (Trixie)]

[openvpn]Fixed
Details (6)
- 2.6.14-1+deb13u3 · amd64 · trixie
  Fixed · Fixed: 2.6.14-1
  usn · openvpn · debian · 13
- 2.6.14-1+deb13u3 · arm64 · trixie
  Fixed · Fixed: 2.6.14-1
  usn · openvpn · debian · 13
- 2.7.5-1~bpo13+1 · amd64 · trixie-backports
  Fixed · Fixed: 2.6.14-1
  usn · openvpn · debian · 13
- 2.7.5-1~bpo13+1 · arm64 · trixie-backports
  Fixed · Fixed: 2.6.14-1
  usn · openvpn · debian · 13
- 2.6.14-1+deb13u3 · amd64 · trixie-security
  Fixed · Fixed: 2.6.14-1
  usn · openvpn · debian · 13
- 2.6.14-1+deb13u3 · arm64 · trixie-security
  Fixed · Fixed: 2.6.14-1
  usn · openvpn · debian · 13

Observed: Oct 27, 2026, 2:58:15 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]