{"id":"CVE-2009-2057","url":"https://www.cyber-defence.io/tools/cve/CVE-2009-2057","generatedAt":"2026-10-27T17:38:00.947Z","title":"Microsoft Internet Explorer before 8 uses the HTTP Host header to determine the context of a document provided in a (1) 4xx or (2) 5xx CONNECT response from a proxy server, which allows man-in-the-middle attackers to execute arbitrary web script by…","description":"Microsoft Internet Explorer before 8 uses the HTTP Host header to determine the context of a document provided in a (1) 4xx or (2) 5xx CONNECT response from a proxy server, which allows man-in-the-middle attackers to execute arbitrary web script by modifying this CONNECT response, aka an \"SSL tampering\" attack.","published":"2009-06-15T19:30:01.000Z","lastModified":"2026-06-16T23:08:40.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":5.8,"severity":"MEDIUM","vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N"},"cwe":["CWE-287"],"affected":["microsoft/ie","microsoft/internet explorer"],"epss":{"score":0.03027,"percentile":0.87381,"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":"low","text":"Lower severity and a low EPSS score (3.03%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://research.microsoft.com/apps/pubs/default.aspx?id=79323","source":"cve@mitre.org"},{"url":"http://research.microsoft.com/pubs/79323/pbp-final-with-update.pdf","tags":["Exploit"],"source":"cve@mitre.org"},{"url":"http://research.microsoft.com/apps/pubs/default.aspx?id=79323","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://research.microsoft.com/pubs/79323/pbp-final-with-update.pdf","tags":["Exploit"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2009-2057","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."}