{"id":"CVE-2009-2069","aliases":["EUVD-2009-2065","GHSA-qfhp-cf5p-v49w"],"status":"published","title":"Microsoft Internet Explorer before 8 displays a cached certificate for a (1) 4xx or (2) 5xx...","description":"Microsoft Internet Explorer before 8 displays a cached certificate for a (1) 4xx or (2) 5xx CONNECT response page returned by a proxy server, which allows man-in-the-middle attackers to spoof an arbitrary https site by letting a browser obtain a valid certificate from this site during one request, and then sending the browser a crafted 502 response page upon a subsequent request.","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":"2026-11-09","score":0.02195,"percentile":0.82601,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2009-06-15T19:00:00Z","modified":"2026-06-16T23:08:41Z","products":[{"vendor":"microsoft","product":"ie"},{"vendor":"microsoft","product":"internet_explorer"}],"references":[{"url":"http://research.microsoft.com/pubs/79323/pbp-final-with-update.pdf","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://www.securityfocus.com/bid/35411","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://research.microsoft.com/apps/pubs/default.aspx?id=79323","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-2069"},{"url":"https://github.com/advisories/GHSA-qfhp-cf5p-v49w"}],"sources":{"cve":[{"id":"CVE-2009-2069","description":"Microsoft Internet Explorer before 8 displays a cached certificate for a (1) 4xx or (2) 5xx CONNECT response page returned by a proxy server, which allows man-in-the-middle attackers to spoof an arbitrary https site by letting a browser obtain a valid certificate from this site during one request, and then sending the browser a crafted 502 response page upon a subsequent request.","status":"published","published":"2009-06-15T19:00:00Z","modified":"2024-08-07T05:36:20.956Z","updated_at":"2026-11-02T14:33:23.395558Z"}],"euvd":[{"id":"EUVD-2009-2065","description":"Microsoft Internet Explorer before 8 displays a cached certificate for a (1) 4xx or (2) 5xx CONNECT response page returned by a proxy server, which allows man-in-the-middle attackers to spoof an arbitrary https site by letting a browser obtain a valid certificate from this site during one request, and then sending the browser a crafted 502 response page upon a subsequent request.","status":"published","published":"2009-06-15T19:00:00Z","modified":"2024-08-07T05:36:20Z","updated_at":"2026-11-03T01:39:18.878997Z"}],"ghsa":[{"id":"GHSA-qfhp-cf5p-v49w","title":"Microsoft Internet Explorer before 8 displays a cached certificate for a (1) 4xx or (2) 5xx...","description":"Microsoft Internet Explorer before 8 displays a cached certificate for a (1) 4xx or (2) 5xx CONNECT response page returned by a proxy server, which allows man-in-the-middle attackers to spoof an arbitrary https site by letting a browser obtain a valid certificate from this site during one request, and then sending the browser a crafted 502 response page upon a subsequent request.","status":"published","published":"2022-05-02T03:31:35Z","modified":"2023-01-31T05:07:45Z","cwes":["CWE-287"],"updated_at":"2026-11-02T14:49:16.50772Z"}],"nvd":[{"id":"CVE-2009-2069","description":"Microsoft Internet Explorer before 8 displays a cached certificate for a (1) 4xx or (2) 5xx CONNECT response page returned by a proxy server, which allows man-in-the-middle attackers to spoof an arbitrary https site by letting a browser obtain a valid certificate from this site during one request, and then sending the browser a crafted 502 response page upon a subsequent request.","status":"published","published":"2009-06-15T19:30:05.687Z","modified":"2026-06-16T23:08:41.987Z","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-287"],"updated_at":"2026-11-02T14:01:35.733785Z"}]}}