Vulnerability Report

CVE-2007-4767

Title: Pcre RCE

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2007-4767.

CWE Category NVD-CWE-noinfo

Published Date Nov 07, 2007

Modified Date Jun 16, 2026

Exploit Status Not Found

Score 5.0 CVSS v2.0

Exploit Probability (EPSS)

5.07%

Vulnerability Summary

CVE-2007-4767: 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.

Impacted Vendors

perl 1

pcre 1

Reference Links

http://bugs.gentoo.org/show_bug.cgi?id=198976 http://docs.info.apple.com/article.html?artnum=307179 http://docs.info.apple.com/article.html?artnum=307562 http://lists.apple.com/archives/security-announce/2007/Dec/msg00002.html http://lists.apple.com/archives/security-announce/2008/Mar/msg00001.html http://mail.gnome.org/archives/gtk-devel-list/2007-November/msg00022.html http://secunia.com/advisories/27538 http://secunia.com/advisories/27543 http://secunia.com/advisories/27554 http://secunia.com/advisories/27697 http://secunia.com/advisories/27741 http://secunia.com/advisories/27773 http://secunia.com/advisories/28136 http://secunia.com/advisories/28406 http://secunia.com/advisories/28414 http://secunia.com/advisories/28714 http://secunia.com/advisories/28720 http://secunia.com/advisories/29267 http://secunia.com/advisories/29420 http://secunia.com/advisories/30106 http://secunia.com/advisories/30155 http://secunia.com/advisories/30219 http://security.gentoo.org/glsa/glsa-200711-30.xml http://security.gentoo.org/glsa/glsa-200801-02.xml http://security.gentoo.org/glsa/glsa-200801-18.xml http://security.gentoo.org/glsa/glsa-200801-19.xml http://security.gentoo.org/glsa/glsa-200805-11.xml http://www.debian.org/security/2007/dsa-1399 http://www.debian.org/security/2008/dsa-1570 http://www.mandriva.com/security/advisories?name=MDKSA-2007:211 http://www.novell.com/linux/security/advisories/2007_62_pcre.html http://www.pcre.org/changelog.txt http://www.securityfocus.com/archive/1/483357/100/0/threaded http://www.securityfocus.com/archive/1/483579/100/0/threaded http://www.securityfocus.com/bid/26346 http://www.us-cert.gov/cas/techalerts/TA07-352A.html http://www.vupen.com/english/advisories/2007/3725 http://www.vupen.com/english/advisories/2007/3790 http://www.vupen.com/english/advisories/2007/4238 http://www.vupen.com/english/advisories/2008/0924/references https://exchange.xforce.ibmcloud.com/vulnerabilities/38277 https://issues.rpath.com/browse/RPL-1738 https://usn.ubuntu.com/547-1/ https://www.redhat.com/archives/fedora-package-announce/2008-March/msg00181.html http://bugs.gentoo.org/show_bug.cgi?id=198976 http://docs.info.apple.com/article.html?artnum=307179 http://docs.info.apple.com/article.html?artnum=307562 http://lists.apple.com/archives/security-announce/2007/Dec/msg00002.html http://lists.apple.com/archives/security-announce/2008/Mar/msg00001.html http://mail.gnome.org/archives/gtk-devel-list/2007-November/msg00022.html http://secunia.com/advisories/27538 http://secunia.com/advisories/27543 http://secunia.com/advisories/27554 http://secunia.com/advisories/27697 http://secunia.com/advisories/27741 http://secunia.com/advisories/27773 http://secunia.com/advisories/28136 http://secunia.com/advisories/28406 http://secunia.com/advisories/28414 http://secunia.com/advisories/28714 http://secunia.com/advisories/28720 http://secunia.com/advisories/29267 http://secunia.com/advisories/29420 http://secunia.com/advisories/30106 http://secunia.com/advisories/30155 http://secunia.com/advisories/30219 http://security.gentoo.org/glsa/glsa-200711-30.xml http://security.gentoo.org/glsa/glsa-200801-02.xml http://security.gentoo.org/glsa/glsa-200801-18.xml http://security.gentoo.org/glsa/glsa-200801-19.xml http://security.gentoo.org/glsa/glsa-200805-11.xml http://www.debian.org/security/2007/dsa-1399 http://www.debian.org/security/2008/dsa-1570 http://www.mandriva.com/security/advisories?name=MDKSA-2007:211 http://www.novell.com/linux/security/advisories/2007_62_pcre.html http://www.pcre.org/changelog.txt http://www.securityfocus.com/archive/1/483357/100/0/threaded http://www.securityfocus.com/archive/1/483579/100/0/threaded http://www.securityfocus.com/bid/26346 http://www.us-cert.gov/cas/techalerts/TA07-352A.html http://www.vupen.com/english/advisories/2007/3725 http://www.vupen.com/english/advisories/2007/3790 http://www.vupen.com/english/advisories/2007/4238 http://www.vupen.com/english/advisories/2008/0924/references https://exchange.xforce.ibmcloud.com/vulnerabilities/38277 https://issues.rpath.com/browse/RPL-1738 https://usn.ubuntu.com/547-1/ https://www.redhat.com/archives/fedora-package-announce/2008-March/msg00181.html

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

5.0

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:N/C:N/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2007-4767 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

June 16, 2026 MODIFIED

Vulnerability data updated via NVD.

April 09, 2025 MODIFIED

Vulnerability data or affected products updated.

November 07, 2007 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A

Complexity N/A

Privileges N/A

Interaction NONE

CVSS Vector String


                                    AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected Stack

No specific products linked.