CVE-2009-2057
Microsoft Internet Explorer before 8 uses the HTTP Host header to determine the context of a...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2009-2057- CVSS 2.0
- 5.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:N - Weakness
- CWE-287
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2009-2057- Updated
- 2026-11-02
EUVDEUVD-2009-2053 No score
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.
- Record
EUVD-2009-2053- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-875j-h634-3xpp No score
Microsoft Internet Explorer before 8 uses the HTTP Host header to determine the context of a...
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.
- Record
GHSA-875j-h634-3xpp- Weakness
- CWE-287
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2009-2057 is a medium vulnerability (CVSS 5.8) in Microsoft Internet Explorer, published June 15, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.03%, the 87th percentile. No source names a fixed version.