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validation of source IP addresses in OpenVPN version 2.6.0 through 2.6.15 and 2.7_alpha1 through 2.7_rc1 allows an attacker to open a session from a different IP address which did not initiate the connection resulting in a denial of service for the originating client","status":"published","published":"2025-12-03T19:54:10.737Z","modified":"2025-12-12T13:50:46.678Z","cvss":[{"version":"4.0","score":4.6,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U","level":"medium","assessor":"cna"}],"cwes":["CWE-940"],"updated_at":"2026-11-02T14:32:43.10004Z"}],"euvd":[{"id":"EUVD-2025-201102","description":"Improper validation of source IP addresses in OpenVPN version 2.6.0 through 2.6.15 and 2.7_alpha1 through 2.7_rc1 allows an attacker to open a session from a different IP address which did not initiate the connection resulting in a denial of service for the originating client","status":"published","published":"2025-12-03T19:54:10Z","modified":"2025-12-12T13:50:46Z","cvss":[{"version":"4.0","score":4.6,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U","level":"medium"}],"updated_at":"2026-11-02T19:49:05.821921Z"}],"ghsa":[{"id":"GHSA-xv5w-q5wq-r3c3","title":"Improper validation of source IP addresses in OpenVPN version 2.6.0 through 2.7_rc1 allows an...","description":"Improper validation of source IP addresses in OpenVPN version 2.6.0 through 2.7_rc1 allows an attacker to open a session from a different IP address which did not initiate the connection resulting in a denial of service for the originating 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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\nImproper validation of source IP addresses in OpenVPN version 2.6.0 through 2.7_rc1 allows an attacker to open a session from a different IP address which did not initiate the connection resulting in a denial of service for the originating client(CVE-2025-13086)","status":"published","published":"2025-12-05T11:09:53Z","modified":"2026-08-18T01:19:21.511871105Z","cvss":[{"version":"4.0","score":4.6,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"updated_at":"2026-11-02T15:52:45.339366Z"},{"id":"OESA-2025-2778","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\nImproper validation of source IP addresses in OpenVPN version 2.6.0 through 2.7_rc1 allows an attacker to open a session from a different IP address which did not initiate the connection resulting in a denial of service for the originating client(CVE-2025-13086)","status":"published","published":"2025-12-05T11:09:53Z","modified":"2026-08-18T01:19:21.512852375Z","cvss":[{"version":"4.0","score":4.6,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"updated_at":"2026-11-02T15:52:45.339366Z"},{"id":"UBUNTU-CVE-2025-13086","description":"Improper validation of source IP addresses in OpenVPN version 2.6.0 through 2.6.15 and 2.7_alpha1 through 2.7_rc1 allows an attacker to open a session from a different IP address which did not initiate the connection resulting in a denial of service for the originating client","status":"published","published":"2025-11-19T00:00:00Z","modified":"2026-02-09T06:29:00.882792Z","cvss":[{"version":"4.0","score":4.6,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U","level":"medium"},{"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":"2026-11-02T16:55:20.144818Z"},{"id":"DSA-6069-1","title":"openvpn - security update","status":"published","published":"2025-12-03T00:00:00Z","modified":"2025-12-03T23:17:54.973755Z","updated_at":"2026-11-02T15:46:18.296714Z"},{"id":"OESA-2025-2742","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\nThis is a security vulnerability affecting Debian packages. More details are required from the Debian security tracker.(CVE-2025-13086)","status":"published","published":"2025-11-28T11:09:51Z","modified":"2026-08-06T11:09:51Z","updated_at":"2026-11-02T15:52:45.339366Z"},{"id":"openSUSE-SU-2026:20137-1","title":"Security update for openvpn","description":"This update for openvpn fixes the following issues:\n\n- CVE-2025-13086: Fixed improper validation of source IP addresses in OpenVPN that could lead to DoS (bsc#1254486).\n","status":"published","published":"2026-01-29T16:14:38Z","modified":"2026-03-23T04:54:45.55437Z","updated_at":"2026-11-02T16:58:41.463445Z"},{"id":"SUSE-SU-2026:0831-1","title":"Security update for openvpn","description":"This update for openvpn fixes the following issues:\n\n- Updated to version 2.6.10 that fixes:\n  * CVE-2025-13086: improper validation of IP addresses that can cause denial of service (bsc#1254486)\n","status":"published","published":"2026-03-05T15:18:06Z","modified":"2026-03-06T15:30:06.214735Z","updated_at":"2026-11-02T15:54:01.262144Z"},{"id":"SUSE-SU-2026:20196-1","title":"Security update for openvpn","description":"This update for openvpn fixes the following issues:\n\n- CVE-2025-13086: Fixed improper validation of source IP addresses in OpenVPN that could lead to DoS (bsc#1254486).\n","status":"published","published":"2026-01-29T16:09:32Z","modified":"2026-03-23T04:52:42.460821Z","updated_at":"2026-11-02T15:54:01.610851Z"},{"id":"USN-7898-1","title":"openvpn vulnerability","description":"Joshua Rogers discovered that OpenVPN incorrectly handled HMAC verification\nchecks. A remote attacker could possibly use this issue to bypass source IP\naddress validation.","status":"published","published":"2025-11-27T16:34:52Z","modified":"2026-02-10T04:50:36Z","updated_at":"2026-11-02T16:58:21.91885Z"}]}}