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CVE-2006-7227

21
FAUCET Score

CVE-2006-7227 describes an integer overflow vulnerability in the Perl-Compatible Regular Expression (PCRE) library, versions prior to 6.7. This flaw allows attackers to execute arbitrary code by crafting malicious regular expressions with an excessive number of named subpatterns or overly long subpattern names, leading to a buffer overflow. With a CVSS score of 6.8 (medium severity), this vulnerability can be exploited remotely with medium attack complexity, potentially leading to partial confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 6.6CPE matchmatch criteria
cpe:2.3:a:pcre:pcre:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.8MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.50%
Probability of exploitation in next 30 days
EPSS Percentile
88.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0350 is in the 83rd percentile among its peer group of 19,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: pcre-0:4.5-4.el4_5.4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: pcre-0:6.6-2.el5_1.1
View patch

Vendor Advisories (1)

redhatCVE-2006-7227Important

pcre integer overflow

Nov 7, 2007

References

bugs.gentoo.org / show_bug.cgi
lists.opensuse.org / opensuse-security-announce/2008-01/msg00006.html
scary.beasts.org / security/CESA-2007-006.html
secunia.com / advisories/27582
Patch
secunia.com / advisories/27741
secunia.com / advisories/27773
secunia.com / advisories/27869
secunia.com / advisories/28406
secunia.com / advisories/28414
secunia.com / advisories/28658
secunia.com / advisories/28714
secunia.com / advisories/28720
secunia.com / advisories/30106
secunia.com / advisories/30155
secunia.com / advisories/30219
security.gentoo.org / glsa/glsa-200711-30.xml
security.gentoo.org / glsa/glsa-200801-02.xml
security.gentoo.org / glsa/glsa-200801-18.xml
security.gentoo.org / glsa/glsa-200801-19.xml
security.gentoo.org / glsa/glsa-200805-11.xml
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10408
support.avaya.com / elmodocs2/security/ASA-2007-493.htm
debian.org / security/2008/dsa-1570
mandriva.com / security/advisories
novell.com / linux/security/advisories/2007_62_pcre.html
pcre.org / changelog.txt
redhat.com / support/errata/RHSA-2007-1052.html
Patch
securityfocus.com / bid/26462