{"id":"CVE-2007-5277","aliases":["EUVD-2007-5257","GHSA-rxph-92gh-ccv4"],"status":"published","title":"Microsoft Internet Explorer 6 drops DNS pins based on failed connections to irrelevant TCP ports,...","description":"Microsoft Internet Explorer 6 drops DNS pins based on failed connections to irrelevant TCP ports, which makes it easier for remote attackers to conduct DNS rebinding attacks, as demonstrated by a port 81 URL in an IMG SRC, when the DNS pin had been established for a session on port 80, a different issue than CVE-2006-4560.","severity":{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.09705,"percentile":0.95544,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2007-10-08T23:00:00Z","modified":"2026-06-16T22:45:48Z","products":[{"vendor":"microsoft","product":"internet_explorer"}],"references":[{"url":"http://osvdb.org/45525","tags":["vdb-entry","x_refsource_OSVDB","x_transferred","Broken Link"]},{"url":"http://crypto.stanford.edu/dns/dns-rebinding.pdf","tags":["x_refsource_MISC","x_transferred","Technical Description","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2007-5277"},{"url":"https://github.com/advisories/GHSA-rxph-92gh-ccv4"}],"sources":{"cve":[{"id":"CVE-2007-5277","description":"Microsoft Internet Explorer 6 drops DNS pins based on failed connections to irrelevant TCP ports, which makes it easier for remote attackers to conduct DNS rebinding attacks, as demonstrated by a port 81 URL in an IMG SRC, when the DNS pin had been established for a session on port 80, a different issue than CVE-2006-4560.","status":"published","published":"2007-10-08T23:00:00Z","modified":"2024-08-07T15:24:42.394Z","updated_at":"2026-11-02T13:32:00.617893Z"}],"euvd":[{"id":"EUVD-2007-5257","description":"Microsoft Internet Explorer 6 drops DNS pins based on failed connections to irrelevant TCP ports, which makes it easier for remote attackers to conduct DNS rebinding attacks, as demonstrated by a port 81 URL in an IMG SRC, when the DNS pin had been established for a session on port 80, a different issue than CVE-2006-4560.","status":"published","published":"2007-10-08T23:00:00Z","modified":"2024-08-07T15:24:42Z","updated_at":"2026-11-03T01:16:17.784694Z"}],"ghsa":[{"id":"GHSA-rxph-92gh-ccv4","title":"Microsoft Internet Explorer 6 drops DNS pins based on failed connections to irrelevant TCP ports,...","description":"Microsoft Internet Explorer 6 drops DNS pins based on failed connections to irrelevant TCP ports, which makes it easier for remote attackers to conduct DNS rebinding attacks, as demonstrated by a port 81 URL in an IMG SRC, when the DNS pin had been established for a session on port 80, a different issue than CVE-2006-4560.","status":"published","published":"2022-05-01T18:31:53Z","modified":"2023-01-31T05:05:17Z","updated_at":"2026-11-02T14:48:49.563933Z"}],"nvd":[{"id":"CVE-2007-5277","description":"Microsoft Internet Explorer 6 drops DNS pins based on failed connections to irrelevant TCP ports, which makes it easier for remote attackers to conduct DNS rebinding attacks, as demonstrated by a port 81 URL in an IMG SRC, when the DNS pin had been established for a session on port 80, a different issue than CVE-2006-4560.","status":"published","published":"2007-10-08T23:17:00Z","modified":"2026-06-16T22:45:48.62Z","cvss":[{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:01:21.141213Z"}]}}