{"id":"CVE-2021-31606","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-31606","generatedAt":"2026-10-27T20:22:52.327Z","title":"furlongm openvpn-monitor through 1.1.3 allows Authorization Bypass to disconnect arbitrary clients.","description":"furlongm openvpn-monitor through 1.1.3 allows Authorization Bypass to disconnect arbitrary clients.","published":"2021-09-27T06:15:08.000Z","lastModified":"2026-06-17T03:52:04.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-287"],"affected":["openvpn-monitor project/openvpn-monitor"],"epss":{"score":0.0255,"percentile":0.84917,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (2.55%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/164274/OpenVPN-Monitor-1.1.3-Authorization-Bypass-Denial-Of-Service.html","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://github.com/furlongm/openvpn-monitor/commit/ddb9d31ef0ec56f578bdacf99ebe9d68455ed8ca","tags":["Patch"],"source":"cve@mitre.org"},{"url":"https://github.com/furlongm/openvpn-monitor/releases","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://packetstormsecurity.com/files/164274/OpenVPN-Monitor-1.1.3-Authorization-Bypass-Denial-Of-Service.html","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/furlongm/openvpn-monitor/commit/ddb9d31ef0ec56f578bdacf99ebe9d68455ed8ca","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/furlongm/openvpn-monitor/releases","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-31606","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}