VULNERABILITY INTELLIGENCE
CVE-2007-4767
CVSS score5 MEDIUM
EPSS probability5.07%
CISA KEVNot currently listed
Published2007-11-07
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:N/A:P
Description
Perl-Compatible Regular Expression (PCRE) library before 7.3 does not properly compute the length of (1) a \p sequence, (2) a \P sequence, or (3) a \P{x} sequence, which allows context-dependent attackers to cause a denial of service (infinite loop or crash) or execute arbitrary code.