VULNERABILITY INTELLIGENCE

CVE-2007-5116

CVSS score7.5 HIGH

EPSS probability4.83%

CISA KEVNot currently listed

Published2007-11-07

Last modified2026-06-16

Description

Buffer overflow in the polymorphic opcode support in the Regular Expression Engine (regcomp.c) in Perl 5.8 allows context-dependent attackers to execute arbitrary code by switching from byte to Unicode (UTF) characters in a regular expression.