CVE-2025-58050
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.
Does this matter?
Lower severity and a low EPSS score (0.80%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 4.0
- 6.9 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:L/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.80% probability · 55th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-122, CWE-125, CWE-787
- Affected
- pcre/pcre2
- Source
- security-advisories@github.com
References
- https://github.com/PCRE2Project/pcre2/commit/a141712e5967d448c7ce13090ab530c8e3d82254Patch
- https://github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.46Release Notes
- https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-c2gv-xgf5-5cc2Exploit, Vendor Advisory
- https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-c2gv-xgf5-5cc2Exploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.