{"id":"CVE-2009-3941","aliases":["EUVD-2009-3912","GHSA-37wj-ffhc-82xv","UBUNTU-CVE-2009-3941"],"status":"published","title":"Martin Lambers mpop before 1.0.19, when OpenSSL is used, does not properly handle a '\\0'...","description":"Martin Lambers mpop before 1.0.19, when OpenSSL is used, does not properly handle a '\\0' character in a domain name in the (1) subject's Common Name or (2) Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00928,"percentile":0.60788,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-310"],"published":"2009-11-16T19:00:00Z","modified":"2026-06-16T23:12:40Z","products":[{"vendor":"martin_lambers","product":"mpop"}],"references":[{"url":"http://mpop.sourceforge.net/news.html","tags":["x_refsource_CONFIRM","x_transferred","Patch"]},{"url":"http://secunia.com/advisories/37312","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://www.vupen.com/english/advisories/2009/3225","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-3941"},{"url":"https://github.com/advisories/GHSA-37wj-ffhc-82xv"},{"url":"https://ubuntu.com/security/CVE-2009-3941","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2009-3941","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2009-3941","description":"Martin Lambers mpop before 1.0.19, when OpenSSL is used, does not properly handle a '\\0' character in a domain name in the (1) subject's Common Name or (2) Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.","status":"published","published":"2009-11-16T19:00:00Z","modified":"2024-09-17T00:51:11.16Z","updated_at":"2026-11-02T14:33:23.749891Z"}],"euvd":[{"id":"EUVD-2009-3912","description":"Martin Lambers mpop before 1.0.19, when OpenSSL is used, does not properly handle a '\\0' character in a domain name in the (1) subject's Common Name or (2) Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.","status":"published","published":"2009-11-16T19:00:00Z","modified":"2024-09-17T00:51:11Z","updated_at":"2026-11-03T00:28:55.3353Z"}],"ghsa":[{"id":"GHSA-37wj-ffhc-82xv","title":"Martin Lambers mpop before 1.0.19, when OpenSSL is used, does not properly handle a '\\0'...","description":"Martin Lambers mpop before 1.0.19, when OpenSSL is used, does not properly handle a '\\0' character in a domain name in the (1) subject's Common Name or (2) Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.","status":"published","published":"2022-05-02T03:50:01Z","modified":"2023-01-31T05:08:29Z","updated_at":"2026-11-02T14:49:24.756389Z"}],"nvd":[{"id":"CVE-2009-3941","description":"Martin Lambers mpop before 1.0.19, when OpenSSL is used, does not properly handle a '\\0' character in a domain name in the (1) subject's Common Name or (2) Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.","status":"published","published":"2009-11-16T19:30:01.047Z","modified":"2026-06-16T23:12:40.243Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-310"],"updated_at":"2026-11-02T14:01:37.939838Z"}],"osv":[{"id":"UBUNTU-CVE-2009-3941","description":"Martin Lambers mpop before 1.0.19, when OpenSSL is used, does not properly handle a '\\0' character in a domain name in the (1) subject's Common Name or (2) Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.","status":"withdrawn","published":"2009-11-16T19:30:00Z","modified":"2025-07-16T07:16:57.667615Z","updated_at":"2026-11-02T15:54:05.838224Z"}]}}