CVE-2025-2704
published 2025-04-02CVE-2025-2704: 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…
PriorityP341high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
0.81%
53.0th percentile
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
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | openvpn | < openvpn 2.6.3-1+deb12u3 (bookworm) | openvpn 2.6.3-1+deb12u3 (bookworm) |
| openvpn | openvpn | >= 0 < 2.6.3-1+deb12u3 | 2.6.3-1+deb12u3 |
| openvpn | openvpn | >= 0 < 2.6.14-1 | 2.6.14-1 |
| openvpn | openvpn | >= 0 < 2.6.14-1 | 2.6.14-1 |
| openvpn | openvpn | 2.6.1 – 2.6.13 | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
osv7.5HIGH
vendor_debian7.5HIGH
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Ubuntu
OpenVPN vulnerability
vendor_ubuntu·2025-04-03
CVE-2025-2704 OpenVPN vulnerability
Title: OpenVPN vulnerability
Summary: OpenVPN could be made to crash if it received specially crafted network
traffic.
It was discovered that OpenVPN incorrectly handled certain malformed
packets. A remote attacker could possibly use this issue to cause OpenVPN
to crash, resulting in a denial of service.
Instructions: After a standard system update you need to reboot your computer to make all
the necessary changes.
Debian
CVE-2025-2704: openvpn - OpenVPN version 2.6.1 through 2.6.13 in server mode using TLS-crypt-v2 allows re...
vendor_debian·2025·CVSS 7.5
CVE-2025-2704 [HIGH] CVE-2025-2704: openvpn - OpenVPN version 2.6.1 through 2.6.13 in server mode using TLS-crypt-v2 allows re...
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
Scope: local
bookworm: resolved (fixed in 2.6.3-1+deb12u3)
bullseye: resolved
forky: resolved (fixed in 2.6.14-1)
sid: resolved (fixed in 2.6.14-1)
trixie: resolved (fixed in 2.6.14-1)
GHSA
GHSA-5gwv-2q72-gxrm: OpenVPN version 2
ghsa_unreviewed·2025-04-02
CVE-2025-2704 [HIGH] CWE-754 GHSA-5gwv-2q72-gxrm: OpenVPN version 2
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
OSV
CVE-2025-2704: OpenVPN version 2
osv·2025-04-02·CVSS 7.5
CVE-2025-2704 [HIGH] CVE-2025-2704: OpenVPN version 2
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
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-04-02
Published