{"id":"CVE-2011-4197","aliases":["EUVD-2011-4140","GHSA-wprp-q629-mgxj"],"status":"published","title":"etc/inc/certs.inc in the PKI implementation in pfSense before 2.0.1 creates each X.509...","description":"etc/inc/certs.inc in the PKI implementation in pfSense before 2.0.1 creates each X.509 certificate with a true value for the CA basic constraint, which allows remote attackers to create sub-certificates for arbitrary subjects by leveraging the private key.","severity":{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-06","score":0.01924,"percentile":0.80033,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-264"],"published":"2012-01-03T19:00:00Z","modified":"2026-06-16T23:34:34Z","products":[{"vendor":"pfsense","product":"pfsense"}],"references":[{"url":"http://www.securityfocus.com/bid/51169","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://github.com/bsdperimeter/pfsense/commit/87b4deb2b2dae9013e6aa0fe490d6a5a04a27894","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://github.com/bsdperimeter/pfsense/commit/1379d66f11aaf72982a70287b83e24efcd18898e","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://archives.neohapsis.com/archives/bugtraq/2011-12/0152.html","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://www.trustmatta.com/advisories/MATTA-2011-001.txt","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/71969","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.osvdb.org/77982","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://secunia.com/advisories/46780","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-4197"},{"url":"https://github.com/advisories/GHSA-wprp-q629-mgxj"}],"sources":{"cve":[{"id":"CVE-2011-4197","description":"etc/inc/certs.inc in the PKI implementation in pfSense before 2.0.1 creates each X.509 certificate with a true value for the CA basic constraint, which allows remote attackers to create sub-certificates for arbitrary subjects by leveraging the private key.","status":"published","published":"2012-01-03T19:00:00Z","modified":"2024-08-07T00:01:51.231Z","updated_at":"2026-11-02T14:35:37.989579Z"}],"euvd":[{"id":"EUVD-2011-4140","description":"etc/inc/certs.inc in the PKI implementation in pfSense before 2.0.1 creates each X.509 certificate with a true value for the CA basic constraint, which allows remote attackers to create sub-certificates for arbitrary subjects by leveraging the private key.","status":"published","published":"2012-01-03T19:00:00Z","modified":"2024-08-07T00:01:51Z","updated_at":"2026-11-03T01:39:49.441333Z"}],"ghsa":[{"id":"GHSA-wprp-q629-mgxj","title":"etc/inc/certs.inc in the PKI implementation in pfSense before 2.0.1 creates each X.509...","description":"etc/inc/certs.inc in the PKI implementation in pfSense before 2.0.1 creates each X.509 certificate with a true value for the CA basic constraint, which allows remote attackers to create sub-certificates for arbitrary subjects by leveraging the private key.","status":"published","published":"2022-05-17T01:52:09Z","modified":"2023-02-03T05:05:33Z","updated_at":"2026-11-02T14:53:45.828819Z"}],"nvd":[{"id":"CVE-2011-4197","description":"etc/inc/certs.inc in the PKI implementation in pfSense before 2.0.1 creates each X.509 certificate with a true value for the CA basic constraint, which allows remote attackers to create sub-certificates for arbitrary subjects by leveraging the private key.","status":"published","published":"2012-01-03T19:55:03.56Z","modified":"2026-06-16T23:34:34.497Z","cvss":[{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-264"],"updated_at":"2026-11-02T14:02:11.800512Z"}]}}