CVE-2007-3944: Apple iPhone OS

High severity, CVSS 9.3. EPSS: 6.5% chance of exploitation in the next 30 days.

Multiple heap-based buffer overflows in the Perl Compatible Regular Expressions (PCRE) library in the JavaScript engine in WebKit in Apple Safari 3 Beta before Update 3.0.3, and iPhone before 1.0.1, allow remote attackers to execute arbitrary code via certain JavaScript regular expressions. NOTE: this issue was originally reported only for MobileSafari on the iPhone. NOTE: it is not clear whether this stems from an issue in the original distribution of PCRE, which might already have a separate CVE identifier.

Affected products

• Apple iPhone OS: up to and including 1.0.0
• Apple Safari: version 3.0 only
• Apple Webkit: any version

Published 2007-07-23. Last modified 2026-06-16.