{"id":"CVE-2009-4831","aliases":["EUVD-2009-4794","GHSA-4r5v-2f2w-h6rr"],"status":"published","title":"Cerulean Studios Trillian 3.1 Basic does not check SSL certificates during MSN authentication,...","description":"Cerulean Studios Trillian 3.1 Basic does not check SSL certificates during MSN authentication, which allows remote attackers to obtain MSN credentials via a man-in-the-middle attack with a spoofed SSL certificate.","severity":{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01374,"percentile":0.7219,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-295"],"published":"2010-04-29T19:00:00Z","modified":"2026-06-16T23:14:26Z","products":[{"vendor":"cerulean_studios","product":"trillian"}],"references":[{"url":"http://secunia.com/advisories/35620","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Broken Link"]},{"url":"http://www.securityfocus.com/archive/1/504573/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Broken Link","Third Party Advisory","VDB Entry"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/51400","tags":["vdb-entry","x_refsource_XF","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://www.securityfocus.com/bid/35509","tags":["vdb-entry","x_refsource_BID","x_transferred","Broken Link","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-4831"},{"url":"https://github.com/advisories/GHSA-4r5v-2f2w-h6rr"}],"sources":{"cve":[{"id":"CVE-2009-4831","description":"Cerulean Studios Trillian 3.1 Basic does not check SSL certificates during MSN authentication, which allows remote attackers to obtain MSN credentials via a man-in-the-middle attack with a spoofed SSL certificate.","status":"published","published":"2010-04-29T19:00:00Z","modified":"2024-08-07T07:17:25.912Z","updated_at":"2026-11-02T14:33:24.782697Z"}],"euvd":[{"id":"EUVD-2009-4794","description":"Cerulean Studios Trillian 3.1 Basic does not check SSL certificates during MSN authentication, which allows remote attackers to obtain MSN credentials via a man-in-the-middle attack with a spoofed SSL certificate.","status":"published","published":"2010-04-29T19:00:00Z","modified":"2024-08-07T07:17:25Z","updated_at":"2026-11-03T01:39:08.636548Z"}],"ghsa":[{"id":"GHSA-4r5v-2f2w-h6rr","title":"Cerulean Studios Trillian 3.1 Basic does not check SSL certificates during MSN authentication,...","description":"Cerulean Studios Trillian 3.1 Basic does not check SSL certificates during MSN authentication, which allows remote attackers to obtain MSN credentials via a man-in-the-middle attack with a spoofed SSL certificate.","status":"published","published":"2022-05-02T03:58:42Z","modified":"2023-01-31T05:08:46Z","cwes":["CWE-295"],"updated_at":"2026-11-02T14:49:27.100963Z"}],"nvd":[{"id":"CVE-2009-4831","description":"Cerulean Studios Trillian 3.1 Basic does not check SSL certificates during MSN authentication, which allows remote attackers to obtain MSN credentials via a man-in-the-middle attack with a spoofed SSL certificate.","status":"published","published":"2010-04-29T19:30:00.37Z","modified":"2026-06-16T23:14:26.46Z","cvss":[{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:01:38.684719Z"}]}}