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The PCRE2 library is a set of C functions that implement regular expression pattern matching. In version 10.45, a heap-buffer-overflow read vulnerability exists in the PCRE2 regular expression matching engine, specifically within the handling of the (*scs:...) (Scan SubString) verb when combined with (*ACCEPT) in src/pcre2_match.c. This vulnerability may potentially lead to information disclosure if the out-of-bounds data read during the memcmp affects the final match result in a way observable by the attacker. This issue has been resolved in version 10.46.
Cite this page
CVE-2025-58050. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2025-58050
Use CWE-122, Pcre vendor hub and Pcre2 product page to widen CVE-2025-58050 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2017-8786, CVE-2017-8399 and CVE-2015-3210 for nearby disclosures in the same product family.