CVE-2007-4766: Pcre

High severity, CVSS 7.5. EPSS: 4.2% chance of exploitation in the next 30 days.

Multiple integer overflows in Perl-Compatible Regular Expression (PCRE) library before 7.3 allow context-dependent attackers to cause a denial of service (crash) or execute arbitrary code via unspecified escape (backslash) sequences.

Affected products

• Pcre Pcre: up to and including 7.3

Published 2007-11-07. Last modified 2026-06-16.