{"id":"CVE-2017-7522","aliases":["DEBIAN-CVE-2017-7522","EUVD-2017-16539","GHSA-c6pr-p5hf-w49p","UBUNTU-CVE-2017-7522","openSUSE-SU-2024:11128-1"],"status":"published","title":"OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service by...","description":"OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service by authenticated remote attacker via sending a certificate with an embedded NULL character.","severity":{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.05539,"percentile":0.92885,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20","CWE-476"],"published":"2017-06-27T13:00:00Z","modified":"2026-10-24T10:30:44Z","fixes":[{"ecosystem":"Debian:12","package":"openvpn","fixed_in":["2.4.3-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"openvpn","fixed_in":["2.4.3-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"openvpn","fixed_in":["2.4.3-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"openvpn","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.3-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"openvpn","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.3-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"openvpn","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.3-1"}]}]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"openvpn","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.3-1.2"}]}],"bundled":10}],"products":[{"vendor":"openvpn","product":"openvpn"},{"vendor":"openvpn technologies, inc","product":"openvpn"}],"references":[{"url":"https://community.openvpn.net/openvpn/wiki/VulnerabilitiesFixedInOpenVPN243","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","report"]},{"url":"http://www.securitytracker.com/id/1038768","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","web"]},{"url":"http://www.securityfocus.com/bid/99230","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-7522"},{"url":"https://github.com/advisories/GHSA-c6pr-p5hf-w49p"},{"url":"https://security-tracker.debian.org/tracker/CVE-2017-7522","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2017-7522","tags":["report"]},{"url":"http://www.openwall.com/lists/oss-security/2017/06/21/6","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2017-7522","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2005-3393","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2005-3409","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2006-1629","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2006-4339","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-12166","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-7521","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-7522","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-9336","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-11810","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-15078","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2017-7522","description":"OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service by authenticated remote attacker via sending a certificate with an embedded NULL character.","status":"published","published":"2017-06-27T13:00:00Z","modified":"2024-08-05T16:04:11.857Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:33:20.843976Z"}],"euvd":[{"id":"EUVD-2017-16539","description":"OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service by authenticated remote attacker via sending a certificate with an embedded NULL character.","status":"published","published":"2017-06-27T13:00:00Z","modified":"2024-08-05T16:04:11Z","updated_at":"2026-11-03T02:39:08.024596Z"}],"ghsa":[{"id":"GHSA-c6pr-p5hf-w49p","title":"OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service by...","description":"OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service by authenticated remote attacker via sending a certificate with an embedded NULL 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denial-of-service by authenticated remote attacker via sending a certificate with an embedded NULL character.","status":"withdrawn","published":"2017-06-27T13:29:00Z","modified":"2025-07-16T08:13:26.670342Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:54:15.773974Z"},{"id":"openSUSE-SU-2024:11128-1","title":"openvpn-2.5.3-1.2 on GA media","description":"These are all security issues fixed in the openvpn-2.5.3-1.2 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T03:53:06.953443Z","updated_at":"2026-11-02T16:58:34.894275Z"}]}}