CVE-2006-7227

CVE-2006-7227 is a medium-severity vulnerability in Pcre with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-189.

Key facts

• Severity: Medium (CVSS 2.0 base score 6.8)
• EPSS exploit prediction: 4% (88th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-189
• Affected product: Pcre
• Published: 2007-11-14
• Last modified: 2026-06-16

Description

Integer overflow in Perl-Compatible Regular Expression (PCRE) library before 6.7 allows context-dependent attackers to execute arbitrary code via a regular expression containing a large number of named subpatterns (name_count) or long subpattern names (max_name_size), which triggers a buffer overflow. NOTE: this issue was originally subsumed by CVE-2006-7224, but that CVE has been REJECTED and split.

Frequently asked questions

What is CVE-2006-7227?

Integer overflow in Perl-Compatible Regular Expression (PCRE) library before 6.7 allows context-dependent attackers to execute arbitrary code via a regular expression containing a large number of named subpatterns (name_count) or long subpattern names (max_name_size), which triggers a buffer overflow. NOTE: this issue was originally subsumed by CVE-2006-7224, but that CVE has been REJECTED and split.

How severe is CVE-2006-7227?

CVE-2006-7227 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2006-7227 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-7227?

CVE-2006-7227 affects Pcre. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-7227?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2006-7227 published?

CVE-2006-7227 was published on 2007-11-14 and last updated on 2026-06-16.

References

• http://bugs.gentoo.org/show_bug.cgi?id=198976
• http://lists.opensuse.org/opensuse-security-announce/2008-01/msg00006.html
• http://scary.beasts.org/security/CESA-2007-006.html
• http://secunia.com/advisories/27582
• http://secunia.com/advisories/27741
• http://secunia.com/advisories/27773
• http://secunia.com/advisories/27869
• http://secunia.com/advisories/28406
• http://secunia.com/advisories/28414
• http://secunia.com/advisories/28658
• http://secunia.com/advisories/28714
• http://secunia.com/advisories/28720
• 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://support.avaya.com/elmodocs2/security/ASA-2007-493.htm
• http://www.debian.org/security/2008/dsa-1570
• http://www.mandriva.com/security/advisories?name=MDVSA-2008:030
• http://www.novell.com/linux/security/advisories/2007_62_pcre.html
• http://www.pcre.org/changelog.txt
• http://www.redhat.com/support/errata/RHSA-2007-1052.html
• http://www.securityfocus.com/bid/26462
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10408

Affected products (1)

• cpe:2.3:a:pcre:pcre:*:*:*:*:*:*:*:*

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