CVE-2006-7225

CVE-2006-7225 is a medium-severity vulnerability in Perl Pcre with a CVSS 2.0 base score of 4.3. 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-20.

Key facts

Description

Perl-Compatible Regular Expression (PCRE) library before 6.7 allows context-dependent attackers to cause a denial of service (error or crash) via a regular expression that involves a "malformed POSIX character class", as demonstrated via an invalid character after a [[ sequence.

Frequently asked questions

What is CVE-2006-7225?
Perl-Compatible Regular Expression (PCRE) library before 6.7 allows context-dependent attackers to cause a denial of service (error or crash) via a regular expression that involves a "malformed POSIX character class", as demonstrated via an invalid character after a [[ sequence.
How severe is CVE-2006-7225?
CVE-2006-7225 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2006-7225 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-7225?
CVE-2006-7225 primarily affects Perl Pcre. In total, 52 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-7225?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-7225 published?
CVE-2006-7225 was published on 2007-12-03 and last updated on 2026-06-16.

References

Affected products (52)

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