CVE-2008-0172

CVE-2008-0172 is a medium-severity vulnerability in Boost with a CVSS 2.0 base score of 5.0. 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

The get_repeat_type function in basic_regex_creator.hpp in the Boost regex library (aka Boost.Regex) in Boost 1.33 and 1.34 allows context-dependent attackers to cause a denial of service (NULL dereference and crash) via an invalid regular expression.

Frequently asked questions

What is CVE-2008-0172?
The get_repeat_type function in basic_regex_creator.hpp in the Boost regex library (aka Boost.Regex) in Boost 1.33 and 1.34 allows context-dependent attackers to cause a denial of service (NULL dereference and crash) via an invalid regular expression.
How severe is CVE-2008-0172?
CVE-2008-0172 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2008-0172 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-0172?
CVE-2008-0172 primarily affects Boost. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-0172?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2008-0172 published?
CVE-2008-0172 was published on 2008-01-17 and last updated on 2026-06-16.

References

Affected products (2)

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