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CVE-2025-58050

PCRE2: heap-buffer-overflow read in match_ref due to missing boundary restoration in SCS

Published: Aug 27, 2025Updated: Sep 9, 2025 Sources: CVE List NVD BDUCWE-122
NVD MITRE
9.1CVSSCRITICAL
EPSS Score
0.7%
Top 53.0%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-122CWE-125CWE-787

Affected Products

pcre2pcre
Library
OSS Libraries / generic-library
pcre2PCRE2Project
Library
OSS Libraries / generic-library
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
PCRE2Philip Hazel
Library
OSS Libraries / generic-library
pcreoss-projectOSS Librariesaka perl compatible regular expression library, pcre2
pcre2projectoss-projectOSS Librariesaka pcre2, pcre2project
ооо «ред софт»commercialRUOperating Systemsaka red soft
philip hazelindividual-devOSS Libraries

Attack Graph

Products CVE Techniques Tactics

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Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

3 techniques
Collection
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://github.com/PCRE2Project/pcre2/commit/a141712e5967d448c7ce13090ab530c8e3d82254
github.com
https://github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.46
github.com
https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-c2gv-xgf5-5cc2
github.com
and 2 more references View all →

Timeline

Published
Aug 27, 2025
Last Updated
Sep 9, 2025

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