CVE-2007-5277
Microsoft Internet Explorer 6 drops DNS pins based on failed connections to irrelevant TCP ports,...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2007-5277- CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2007-5277- Updated
- 2026-11-02
EUVDEUVD-2007-5257 No score
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.
- Record
EUVD-2007-5257- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rxph-92gh-ccv4 No score
Microsoft Internet Explorer 6 drops DNS pins based on failed connections to irrelevant TCP ports,...
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.
- Record
GHSA-rxph-92gh-ccv4- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| aliases, references, title | GitHub Advisories | |
| first indexed | CVE List, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2007-5277 is a medium vulnerability (CVSS 4.3) in Microsoft Internet Explorer, published October 8, 2007. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 9.71%, the 95th percentile. No source names a fixed version.