CVE-2007-5277

CVE-2007-5277 describes a vulnerability in Microsoft Internet Explorer 6 where failed connections to irrelevant TCP ports could cause the browser to drop DNS pins, facilitating DNS rebinding attacks. Specifically, an attacker could use a URL with a port like 81 in an IMG SRC to bypass a DNS pin established for a session on port 80. This vulnerability has a CVSS score of 4.3 (Medium), indicating a network-based attack with medium complexity and potential for partial integrity impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.