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CVE-2007-4767

UnknownEPSS 5.07%

Last modified

CVE-2007-4767 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 5.07% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability
5.07%

91.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
PcrePcre<= 6.0
PcrePcre<= 6.1
PcrePcre<= 7.3

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2007-4767?
Severity scoring for CVE-2007-4767 is pending analysis. The EPSS model estimates a 5.07% probability of exploitation in the next 30 days.
How do I fix CVE-2007-4767?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2007-4767?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST