{"id":"CVE-2009-3766","aliases":["EUVD-2009-3738","GHSA-92jw-w2rc-xwxg"],"status":"published","title":"mutt_ssl.c in mutt 1.5.16 and other versions before 1.5.19, when OpenSSL is used, does not verify...","description":"mutt_ssl.c in mutt 1.5.16 and other versions before 1.5.19, when OpenSSL is used, does not verify the domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.","severity":{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01148,"percentile":0.67032,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-310"],"published":"2009-10-23T19:00:00Z","modified":"2026-06-16T23:12:19Z","products":[{"vendor":"mutt","product":"mutt"}],"references":[{"url":"http://www.openwall.com/lists/oss-security/2009/10/26/1","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory"]},{"url":"http://dev.mutt.org/trac/ticket/3087","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"http://marc.info/?l=oss-security\u0026m=125198917018936\u0026w=2","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-3766"},{"url":"https://github.com/advisories/GHSA-92jw-w2rc-xwxg"}],"sources":{"cve":[{"id":"CVE-2009-3766","description":"mutt_ssl.c in mutt 1.5.16 and other versions before 1.5.19, when OpenSSL is used, does not verify the domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.","status":"published","published":"2009-10-23T19:00:00Z","modified":"2024-08-07T06:38:30.251Z","updated_at":"2026-11-02T14:33:23.749891Z"}],"euvd":[{"id":"EUVD-2009-3738","description":"mutt_ssl.c in mutt 1.5.16 and other versions before 1.5.19, when OpenSSL is used, does not verify the domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.","status":"published","published":"2009-10-23T19:00:00Z","modified":"2024-08-07T06:38:30Z","updated_at":"2026-11-03T01:39:12.69352Z"}],"ghsa":[{"id":"GHSA-92jw-w2rc-xwxg","title":"mutt_ssl.c in mutt 1.5.16 and other versions before 1.5.19, when OpenSSL is used, does not verify...","description":"mutt_ssl.c in mutt 1.5.16 and other versions before 1.5.19, when OpenSSL is used, does not verify the domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.","status":"published","published":"2022-05-02T03:48:23Z","modified":"2023-01-31T05:08:26Z","updated_at":"2026-11-02T14:49:23.788915Z"}],"nvd":[{"id":"CVE-2009-3766","description":"mutt_ssl.c in mutt 1.5.16 and other versions before 1.5.19, when OpenSSL is used, does not verify the domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.","status":"published","published":"2009-10-23T19:30:00.233Z","modified":"2026-06-16T23:12:19.117Z","cvss":[{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-310"],"updated_at":"2026-11-02T14:01:37.004244Z"}]}}