{"id":"CVE-2025-2704","aliases":["ALPINE-CVE-2025-2704","DEBIAN-CVE-2025-2704","EUVD-2025-9571","GHSA-5gwv-2q72-gxrm","OESA-2025-1396","OESA-2025-1397","SUSE-SU-2025:01508-1","SUSE-SU-2025:1508-1","UBUNTU-CVE-2025-2704","USN-7411-1","openSUSE-SU-2025:14979-1"],"status":"published","title":"OpenVPN version 2.6.1 through 2.6.13 in server mode using TLS-crypt-v2 allows remote attackers to...","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 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Enterprise Module for Basesystem 15 SP7","package":"openvpn","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.8-150600.3.17.1"}]}]},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP7","package":"openvpn-dco","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.8-150600.3.17.1"}]}]},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP6","package":"openvpn","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.8-150600.3.17.1"}]}]},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP6","package":"openvpn-dco","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.8-150600.3.17.1"}]}]},{"source":"osv","ecosystem":"openSUSE:Leap 15.6","package":"openvpn","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.8-150600.3.17.1"}]}]},{"source":"osv","ecosystem":"openSUSE:Leap 15.6","package":"openvpn-dco","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.8-150600.3.17.1"}]}]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"openvpn","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.12-0ubuntu0.24.04.3"}]}],"versions":["2.6.5-0ubuntu1","2.6.7-1ubuntu1","2.6.9-1ubuntu2","2.6.9-1ubuntu3","2.6.9-1ubuntu4","2.6.9-1ubuntu4.1","2.6.12-0ubuntu0.24.04.1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"openvpn","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.12-0ubuntu0.24.04.3"}]}],"versions":["2.6.5-0ubuntu1","2.6.7-1ubuntu1","2.6.9-1ubuntu2","2.6.9-1ubuntu3","2.6.9-1ubuntu4","2.6.9-1ubuntu4.1","2.6.12-0ubuntu0.24.04.1"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"openvpn","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.14-1.1"}]}]}],"products":[{"vendor":"openvpn","product":"openvpn"}],"references":[{"url":"https://community.openvpn.net/openvpn/wiki/CVE-2025-2704","tags":["vendor-advisory","Broken Link","advisory"]},{"url":"https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00142.html","tags":["release-notes","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2025/04/02/5","tags":["Mailing List","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-2704","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-5gwv-2q72-gxrm"},{"url":"https://security.alpinelinux.org/vuln/CVE-2025-2704","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/2xxx/CVE-2025-2704.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2025-2704","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1396","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1397","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2025/suse-su-202501508-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1240392","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2025-2704","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2025/suse-su-20251508-1/","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2025-2704","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-2704","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-7411-1","tags":["advisory"]},{"url":"","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2025-2704","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","status":"published","published":"2025-04-02T21:00:58.582Z","modified":"2025-10-23T10:53:34.373Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-754"],"updated_at":"2026-11-02T14:32:38.70481Z"}],"euvd":[{"id":"EUVD-2025-9571","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","status":"published","published":"2025-04-02T21:00:58Z","modified":"2025-10-23T10:53:34Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T19:49:38.250854Z"}],"ghsa":[{"id":"GHSA-5gwv-2q72-gxrm","title":"OpenVPN version 2.6.1 through 2.6.13 in server mode using TLS-crypt-v2 allows remote attackers to...","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","status":"published","published":"2025-04-02T21:30:51Z","modified":"2025-10-23T12:32:24Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-754"],"updated_at":"2026-11-02T15:04:11.563124Z"}],"nvd":[{"id":"CVE-2025-2704","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","status":"published","published":"2025-04-02T21:15:32.943Z","modified":"2026-06-17T09:07:28.283Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-754"],"updated_at":"2026-11-02T14:10:58.094557Z"}],"osv":[{"id":"ALPINE-CVE-2025-2704","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","status":"published","published":"2025-04-02T21:15:32.943Z","modified":"2026-08-27T22:18:02.853483241Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:27:49.709457Z"},{"id":"CVE-2025-2704","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","status":"published","published":"2025-04-02T21:00:58.582Z","modified":"2026-10-28T02:30:58.58677013Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-754"],"updated_at":"2026-11-02T15:44:47.386092Z"},{"id":"DEBIAN-CVE-2025-2704","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","status":"published","published":"2025-04-02T21:15:32.943Z","modified":"2026-09-01T20:05:44.990917675Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:45.870237Z"},{"id":"OESA-2025-1396","title":"openvpn security update","description":"OpenVPN is a full-featured open source SSL VPN solution that accommodates a wide range of configurations,  including remote access, site-to-site VPNs, Wi-Fi security, and enterprise-scale remote access solutions with load balancing,  failover, and fine-grained access-controls. Starting with the fundamental premise that complexity is the enemy of security,  OpenVPN offers a cost-effective, lightweight alternative to other VPN technologies that is well-adapted for the SME and enterprise markets.\r\n\r\nSecurity Fix(es):\n\nOpenVPN 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(CVE-2025-2704)","status":"published","published":"2025-04-11T11:08:29Z","modified":"2026-08-18T01:18:17.174762151Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:42.714349Z"},{"id":"OESA-2025-1397","title":"openvpn security update","description":"OpenVPN is a full-featured open source SSL VPN solution that accommodates a wide range of configurations,  including remote access, site-to-site VPNs, Wi-Fi security, and enterprise-scale remote access solutions with load balancing,  failover, and fine-grained access-controls. Starting with the fundamental premise that complexity is the enemy of security,  OpenVPN offers a cost-effective, lightweight alternative to other VPN technologies that is well-adapted for the SME and enterprise markets.\r\n\r\nSecurity Fix(es):\n\nOpenVPN 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(CVE-2025-2704)","status":"published","published":"2025-04-11T11:08:29Z","modified":"2026-08-18T01:18:17.172815019Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:42.714349Z"},{"id":"UBUNTU-CVE-2025-2704","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","status":"published","published":"2025-04-02T00:00:00Z","modified":"2026-02-04T04:17:05.191705Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T16:55:26.330196Z"},{"id":"openSUSE-SU-2025:14979-1","title":"openvpn-2.6.14-1.1 on GA media","description":"These are all security issues fixed in the openvpn-2.6.14-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2025-04-09T00:00:00Z","modified":"2026-02-04T02:58:11.586375Z","updated_at":"2026-11-02T16:58:37.399567Z"},{"id":"SUSE-SU-2025:01508-1","title":"Security update for openvpn","description":"This update for openvpn fixes the following issues:\n\n- CVE-2025-2704: Fixed remote DoS due to possible ASSERT() on OpenVPN servers using --tls-crypt-v2 (bsc#1240392)\n","status":"published","published":"2025-06-06T10:05:10Z","modified":"2026-03-23T04:46:16.195109Z","updated_at":"2026-11-02T15:53:56.123059Z"},{"id":"SUSE-SU-2025:1508-1","title":"Security update for openvpn","description":"This update for openvpn fixes the following issues:\n\n- CVE-2025-2704: Fixed remote DoS due to possible ASSERT() on OpenVPN servers using --tls-crypt-v2 (bsc#1240392)\n","status":"published","published":"2025-05-07T14:02:51Z","modified":"2026-02-04T03:39:19.409575Z","updated_at":"2026-11-02T15:53:59.381172Z"},{"id":"USN-7411-1","title":"openvpn vulnerability","description":"It was discovered that OpenVPN incorrectly handled certain malformed\npackets. A remote attacker could possibly use this issue to cause OpenVPN\nto crash, resulting in a denial of service.\n","status":"published","published":"2025-04-03T11:45:09Z","modified":"2026-02-10T04:47:47Z","updated_at":"2026-11-02T16:58:19.988474Z"}]}}