{"id":"CVE-2009-3455","url":"https://www.cyber-defence.io/tools/cve/CVE-2009-3455","generatedAt":"2026-10-27T19:39:41.194Z","title":"Apple Safari, possibly before 4.0.3, on Mac OS X does not properly handle a '\\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a…","description":"Apple Safari, possibly before 4.0.3, on Mac OS X does not properly handle a '\\0' character in a domain name in the subject's Common Name (CN) 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.","published":"2009-09-29T18:00:00.000Z","lastModified":"2026-06-16T23:11:38.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":7.5,"severity":"HIGH","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P"},"cwe":["CWE-310"],"affected":["apple/safari"],"epss":{"score":0.00578,"percentile":0.47345,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.58%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://www.networkworld.com/news/2009/091709-microsoft-ie-security-hole.html","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/36477","tags":["Patch"],"source":"cve@mitre.org"},{"url":"http://www.networkworld.com/news/2009/091709-microsoft-ie-security-hole.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/36477","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2009-3455","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}