VULNERABILITY INTELLIGENCE
CVE-2005-2491
CVSS score7.5 HIGH
EPSS probability4.34%
CISA KEVNot currently listed
Published2005-08-23
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:P/I:P/A:P
Description
Integer overflow in pcre_compile.c in Perl Compatible Regular Expressions (PCRE) before 6.2, as used in multiple products such as Python, Ethereal, and PHP, allows attackers to execute arbitrary code via quantifier values in regular expressions, which leads to a heap-based buffer overflow.