CVE-2008-0171: Boost

Medium severity, CVSS 5.0. EPSS: 2.7% chance of exploitation in the next 30 days.

regex/v4/perl_matcher_non_recursive.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 (failed assertion and crash) via an invalid regular expression.

Affected products

• Boost Boost: version 1.33 only; version 1.34 only
• Boost Boost Regex Library: any version

Published 2008-01-17. Last modified 2026-06-16.