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9.3

Internet Explorer 7 may run code from malicious CSS

CVE-2009-0076 · published 17 years ago
Summary

Internet Explorer 7, when displaying pages in XHTML strict mode, can be tricked by a specially crafted CSS stylesheet to execute unwanted code. This happens because the browser mishandles certain style directives, allowing an attacker to run code on the user's machine. Upgrade to a newer browser version or apply the latest security updates to protect against this risk.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
microsoft internet_explorer 7
cpe:2.3:a:microsoft:internet_explorer:7:*:*:*:*:*:*:*
Original advisory text
Microsoft Internet Explorer 7, when XHTML strict mode is used, allows remote attackers to execute arbitrary code via the zoom style directive in conjunction with unspecified other directives in a m...
Microsoft Internet Explorer 7, when XHTML strict mode is used, allows remote attackers to execute arbitrary code via the zoom style directive in conjunction with unspecified other directives in a malformed Cascading Style Sheets (CSS) stylesheet in a crafted HTML document, aka "CSS Memory Corruption Vulnerability."
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker full control (estimated)
Severity
9.3 Critical
Exploitation
34% chance of attack within 30 days
Type
CWE-399Resource Management Errors
Timeline
Published10 Feb 2009
Updated29 Sep 2026
First seen29 Sep 2026
Sources
CVE-2009-0076 · NVD
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