{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2023-27100","sourceIdentifier":"cve@mitre.org","published":"2023-03-22T23:15:12.350","lastModified":"2026-06-17T05:44:22.420","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Improper restriction of excessive authentication attempts in the SSHGuard component of Netgate pfSense Plus software v22.05.1 and pfSense CE software v2.6.0 allows attackers to bypass brute force protection mechanisms via crafted web requests."}],"affected":[{"source":"cve@mitre.org","affectedData":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2025-02-25T21:10:08.762346Z","id":"CVE-2023-27100","options":[{"exploitation":"poc"},{"automatable":"yes"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-307"}]},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","description":[{"lang":"en","value":"CWE-307"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:netgate:pfsense_plus:22.05.1:*:*:*:*:*:*:*","matchCriteriaId":"0F3B5179-1D65-4536-AC94-FC7CCE8288DF"},{"vulnerable":true,"criteria":"cpe:2.3:a:pfsense:pfsense:2.6.0:*:*:*:community:*:*:*","matchCriteriaId":"7F69B7B3-805F-4604-9710-80F11F5E4142"}]}]}],"references":[{"url":"http://packetstormsecurity.com/files/171791/pfsenseCE-2.6.0-Protection-Bypass.html","source":"cve@mitre.org"},{"url":"https://docs.netgate.com/downloads/pfSense-SA-23_05.sshguard.asc","source":"cve@mitre.org","tags":["Vendor Advisory"]},{"url":"https://redmine.pfsense.org/issues/13574","source":"cve@mitre.org","tags":["Issue Tracking","Patch","Vendor Advisory"]},{"url":"http://packetstormsecurity.com/files/171791/pfsenseCE-2.6.0-Protection-Bypass.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://docs.netgate.com/downloads/pfSense-SA-23_05.sshguard.asc","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]},{"url":"https://redmine.pfsense.org/issues/13574","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Issue Tracking","Patch","Vendor Advisory"]},{"url":"https://packetstorm.news/files/id/171791","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}}