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.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact None

Subsequent System Availability Impact Low

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation poc

Automatable yes

Technical Impact partial

Affected Vendors & Products

Vendors Products
Pcre
  • Pcre2

Configuration 1 [-]

cpe:2.3:a:pcre:pcre2:10.45:*:*:*:*:*:*:*

No data.

References
Link Providers
https://github.com/PCRE2Project/pcre2/commit/a141712e5967d448c7ce13090ab530c8e3d82254 cve-icon cve-icon cve-icon
https://github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.46 cve-icon cve-icon cve-icon
https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-c2gv-xgf5-5cc2 cve-icon cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-58050 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-58050 cve-icon
History

Tue, 09 Sep 2025 15:30:00 +0000

Type Values Removed Values Added
First Time appeared Pcre
Pcre pcre2
Weaknesses CWE-787
CPEs cpe:2.3:a:pcre:pcre2:10.45:*:*:*:*:*:*:*
Vendors & Products Pcre
Pcre pcre2
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L'}

 cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H'}

Fri, 29 Aug 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L'}

threat_severity

Moderate

Wed, 27 Aug 2025 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 27 Aug 2025 19:00:00 +0000

Type Values Removed Values Added
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.
Title PCRE2: heap-buffer-overflow read in match_ref due to missing boundary restoration in SCS
Weaknesses CWE-122
CWE-125
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:L/SI:N/SA:L'}
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2025-08-27T18:47:35.041Z

Updated: 2025-08-27T19:14:38.145Z

Reserved: 2025-08-22T14:30:32.221Z

Link: CVE-2025-58050

cve-icon Vulnrichment

Updated: 2025-08-27T18:57:33.716Z

cve-icon NVD

Status : Analyzed

Published: 2025-08-27T19:15:37.560

Modified: 2025-09-09T15:27:39.573

Link: CVE-2025-58050

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-08-27T18:47:35Z

Links: CVE-2025-58050 - Bugzilla