CVE-2025-58050

Name: CVE-2025-58050
Creator: NVD / NIST
Published: 2025-08-27T19:15:37.56+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.9/10EPSS 0.69%

Last modified Jun 17, 2026

CVE-2025-58050 is a medium-severity vulnerability rated 6.9/10 on the CVSS scale. 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. EPSS estimates a 0.69% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CVSS 4.0

6.9/10

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.69%

48.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Pcre	Pcre2	10.45

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

Timeline

Published: Aug 27, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-58050?

How severe is CVE-2025-58050?

CVE-2025-58050 has a CVSS score of 6.9/10 (MEDIUM severity). The EPSS model estimates a 0.69% probability of exploitation in the next 30 days.

How do I fix CVE-2025-58050?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-58050?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST