CVE-2007-4766

Multiple integer overflows in Perl-Compatible Regular Expression (PCRE) library before 7.3 allow...

7.5 HighFix available

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.

Exploit likelihood

4.16%Down 0.1 points since Feb 4, 2022

What each source reports

NVD Score used 7.5

Record: CVE-2007-4766
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness: CWE-189
Updated: 2026-11-02

CVE List No score

Record: CVE-2007-4766
Updated: 2026-11-02

EUVDEUVD-2007-4747 No score

Record: EUVD-2007-4747
Updated: 2026-11-03

GitHub AdvisoriesGHSA-ppf2-g285-2xj9 No score

Multiple integer overflows in Perl-Compatible Regular Expression (PCRE) library before 7.3 allow...

Record: GHSA-ppf2-g285-2xj9
Updated: 2026-11-02

OSV No score

Record: CVE-2007-4766
Updated: 2026-11-02

OSVDEBIAN-CVE-2007-4766 No score

Record: DEBIAN-CVE-2007-4766
Updated: 2026-11-02

Affected products

pcre

Affected packages

Affected packages
Package	Affected	Fixed
`glib2.0` Debian:12	before 2.14.3-1	2.14.3-1
`glib2.0` Debian:13	before 2.14.3-1	2.14.3-1
`glib2.0` Debian:14	before 2.14.3-1	2.14.3-1
`pcre3` Debian:12	before 7.3-1	7.3-1
`pcre3` Debian:3.1 From an advisory covering 7 CVEs	before 4.5+7.4-1, plus listed versions 4.5-1.24.5-1.2sarge1	4.5+7.4-1
`pcre3` Debian:4.0 From an advisory covering 7 CVEs	before 6.7+7.4-2, plus listed versions 6.7+7.4-16.7-1	6.7+7.4-2
`kazehakase` Debian:4.0 From an advisory covering 10 CVEs	before 0.4.2-1etch1, plus listed versions 0.4.2-1	0.4.2-1etch1
`pcre3` Debian:5.0 From an advisory covering 7 CVEs	before 6.7+7.4-2+lenny1	6.7+7.4-2+lenny1

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	aliases
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2007-4766 is a high vulnerability (CVSS 7.5) in Pcre, published November 5, 2007. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.16%, the 90th percentile. Fixed in glib2.0 2.14.3-1.

References

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