{"id":"CVE-2012-5821","aliases":["EUVD-2012-5700","GHSA-px54-5fmq-rf2f"],"status":"published","title":"Lynx does not verify that the server's certificate is signed by a trusted certification authority...","description":"Lynx does not verify that the server's certificate is signed by a trusted certification authority, which allows man-in-the-middle attackers to spoof SSL servers via a crafted certificate, related to improper use of a certain GnuTLS function.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00811,"percentile":0.57191,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-295"],"published":"2012-11-04T22:00:00Z","modified":"2026-06-16T23:47:24Z","products":[{"vendor":"canonical","product":"ubuntu_linux"},{"vendor":"lynx","product":"lynx"}],"references":[{"url":"https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0351","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"http://www.ubuntu.com/usn/USN-1642-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","Third Party Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/79930","tags":["vdb-entry","x_refsource_XF","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2013:101","tags":["vendor-advisory","x_refsource_MANDRIVA","x_transferred","Broken Link"]},{"url":"http://www.cs.utexas.edu/~shmat/shmat_ccs12.pdf","tags":["x_refsource_MISC","x_transferred","Exploit"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-5821"},{"url":"https://github.com/advisories/GHSA-px54-5fmq-rf2f"}],"sources":{"cve":[{"id":"CVE-2012-5821","description":"Lynx does not verify that the server's certificate is signed by a trusted certification authority, which allows man-in-the-middle attackers to spoof SSL servers via a crafted certificate, related to improper use of a certain GnuTLS function.","status":"published","published":"2012-11-04T22:00:00Z","modified":"2024-08-06T21:21:26.758Z","updated_at":"2026-11-02T14:34:49.246229Z"}],"euvd":[{"id":"EUVD-2012-5700","description":"Lynx does not verify that the server's certificate is signed by a trusted certification authority, which allows man-in-the-middle attackers to spoof SSL servers via a crafted certificate, related to improper use of a certain GnuTLS function.","status":"published","published":"2012-11-04T22:00:00Z","modified":"2024-08-06T21:21:26Z","updated_at":"2026-11-03T01:56:04.024018Z"}],"ghsa":[{"id":"GHSA-px54-5fmq-rf2f","title":"Lynx does not verify that the server's certificate is signed by a trusted certification authority...","description":"Lynx does not verify that the server's certificate is signed by a trusted certification authority, which allows man-in-the-middle attackers to spoof SSL servers via a crafted certificate, related to improper use of a certain GnuTLS function.","status":"published","published":"2022-05-17T01:38:35Z","modified":"2024-02-09T03:32:56Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:55:34.624515Z"}],"nvd":[{"id":"CVE-2012-5821","description":"Lynx does not verify that the server's certificate is signed by a trusted certification authority, which allows man-in-the-middle attackers to spoof SSL servers via a crafted certificate, related to improper use of a certain GnuTLS function.","status":"published","published":"2012-11-04T22:55:04.827Z","modified":"2026-06-16T23:47:24.077Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary"},{"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":"2026-11-02T14:02:16.536025Z"}]}}