{"cve":"CVE-2011-3422","nvd":{"published":"2011-09-12T12:40:44.940","modified":"2026-06-16T23:33:15.907","status":"Modified","description":"The Keychain implementation in Apple Mac OS X 10.6.8 and earlier does not properly handle an untrusted attribute of a Certification Authority certificate, which makes it easier for man-in-the-middle attackers to spoof arbitrary SSL servers via an Extended Validation certificate, as demonstrated by https access with Safari.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://lists.apple.com/archives/security-announce/2012/Feb/msg00000.html","http://support.apple.com/kb/HT5130","http://www.computerworld.com/s/article/9219669/Mac_OS_X_can_t_properly_revoke_dodgy_digital_certificates","http://www.securityfocus.com/bid/49429","http://www.securitytracker.com/id?1026002"],"products":["apple:mac_os_x","apple:mac_os_x_server"],"source":"nvd","synced_at":"2026-10-19T19:58:50.521460154+00:00"},"epss":{"cve":"CVE-2011-3422","score":0.00857,"percentile":0.58451,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}