CVE-2006-3946: Apple Mac OS X

High severity, CVSS 7.5. EPSS: 5.3% chance of exploitation in the next 30 days.

WebCore in Apple Mac OS X 10.3.9 and 10.4 through 10.4.7 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via crafted HTML that triggers a "memory management error" in WebKit, possibly due to a buffer overflow, as originally reported for the KHTMLParser::popOneBlock function in Apple Safari 2.0.4 using Javascript that changes document.body.innerHTML within a DIV tag.

Affected products

• Apple Mac OS X: version 10.3.9 only; version 10.4 only; version 10.4.1 only; version 10.4.2 only; version 10.4.3 only; version 10.4.4 only; …
• Apple Safari: version 2.0.4 only

Published 2006-07-31. Last modified 2026-06-16.