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CVE-2006-7225

14
FAUCET Score

CVE-2006-7225 describes a denial-of-service vulnerability in the Perl-Compatible Regular Expression (PCRE) library, versions prior to 6.7, affecting products like Perl and PCRE itself. Attackers can trigger an error or crash by providing a malformed POSIX character class within a regular expression, specifically an invalid character following a [[ sequence. This vulnerability has a CVSS score of 4.3, indicating a medium attack complexity and partial availability impact, with no known active exploitation, publicly available exploit code, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
0.91CPE matchmatch criteria
cpe:2.3:a:perl:pcre:0.91:*:*:*:*:*:*:*
0.92CPE matchmatch criteria
cpe:2.3:a:perl:pcre:0.92:*:*:*:*:*:*:*
0.93CPE matchmatch criteria
cpe:2.3:a:perl:pcre:0.93:*:*:*:*:*:*:*
0.94CPE matchmatch criteria
cpe:2.3:a:perl:pcre:0.94:*:*:*:*:*:*:*
0.95CPE matchmatch criteria
cpe:2.3:a:perl:pcre:0.95:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.60%
Probability of exploitation in next 30 days
EPSS Percentile
73.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0160 is in the 49th percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

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_6.6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: pcre-0:6.6-2.el5_1.7
View patch

Vendor Advisories (1)

redhatCVE-2006-7225Important

pcre miscalculation of memory requirements for malformed Posix character class

Nov 13, 2007

References

lists.opensuse.org / opensuse-security-announce/2008-01/msg00006.html
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/28041
secunia.com / advisories/28658
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10985
support.avaya.com / elmodocs2/security/ASA-2007-505.htm
mandriva.com / security/advisories
pcre.org / changelog.txt
redhat.com / support/errata/RHSA-2007-1059.html
Patch
redhat.com / support/errata/RHSA-2007-1068.html
Patch
securityfocus.com / bid/26725