Information disclosure in Microsoft Internet Explorer

CVE-2011-1246

Microsoft Internet Explorer 8 does not properly handle content settings in HTTP responses, which allows remote web servers to obtain sensitive information from a different (1) domain or (2) zone via a crafted response, aka "MIME Sniffing Information Disclosure Vulnerability."

Vulnerability class: Information Disclosure

Published 2011-06-16 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 4.3 (Medium). Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.056 (92.6th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 92.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.056 · newest: 0.056 · change: 0.000

Affected products

Microsoft Internet Explorer — versions 8
Microsoft Windows 7
Microsoft Windows Server 2003
Microsoft Windows Server 2008 — versions r2
Microsoft Windows Vista
Microsoft Windows Xp

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:12464 (Tool Signature, signature, vdb-entry)
docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-050 (vendor-advisory, Patch, Vendor Advisory)