CVE-2007-2291: Microsoft Internet Explorer

High severity, CVSS 7.5. EPSS: 20.1% chance of exploitation in the next 30 days.

CRLF injection vulnerability in the Digest Authentication support for Microsoft Internet Explorer 7.0.5730.11 allows remote attackers to conduct HTTP response splitting attacks via a LF (%0a) in the username attribute.

Affected products

• Microsoft Internet Explorer: version 7.0.5730.11 only

Published 2007-04-26. Last modified 2026-06-16.