5.9Medium

CVE-2025-8058

The GNU C Library glibc Published: 2025-07-23 22:57 (1 year ago)

Description

The regcomp function in the GNU C library version from 2.4 to 2.41 is subject to a double free if some previous allocation fails. It can be accomplished either by a malloc failure or by using an interposed malloc that injects random malloc failures. The double free can allow buffer manipulation depending of how the regex is constructed. This issue affects all architectures and ABIs supported by the GNU C library.

Weakness (CWE): CWE-415

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

Vendor	Product	Versions
The GNU C Library	glibc	2.4 – < 2.42

References and patches

CVSS score

5.9Medium

Source: glibc · CVSS 4.0

Attack vector: Local
Attack complexity: High
Attack requirements: Present
Privileges required: Low
User interaction: Passive
Confidentiality: Low
Integrity: Low
Availability: High

CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:L/VI:L/VA:H/SC:L/SI:L/SA:H

All scores (2)

cna	CVSS 4.0	5.9Medium
3ff69d7a-14f2-4f67-a097-88dee7810d18	CVSS 4.0	5.9Medium

EPSS (chance of exploitation in 30 days)

0.22%

higher than 13% of all CVEs

CISA assessment (SSVC)

Exploitation: none
Automatable: no
Technical impact: partial

Timeline

ID reserved2025-07-22
Published2025-07-23 22:57
Reached IP-DB2026-10-24 23:58
Last updated2026-06-17 13:06

Assigned by (CNA): glibc
NVD status: Deferred

View at source: CVE.org · NVD

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