How severe is CVE-2025-8058?

CVE-2025-8058 has a CVSS 4.0 base score of 5.9, rated medium severity.

Is CVE-2025-8058 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-8058?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-8058 have an EU (EUVD) identifier?

Yes. CVE-2025-8058 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-22469.

When was CVE-2025-8058 published?

CVE-2025-8058 was published on 2025-07-23 and last updated on 2026-06-17.

CVE-2025-8058

CVE-2025-8058 is a medium-severity vulnerability with a CVSS 4.0 base score of 5.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-415.

Key facts

Severity: Medium (CVSS 4.0 base score 5.9)
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-22469
Weakness: CWE-415
Published: 2025-07-23
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-8058?: 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.
How severe is CVE-2025-8058?: CVE-2025-8058 has a CVSS 4.0 base score of 5.9, rated medium severity.
Is CVE-2025-8058 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-8058?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-8058 have an EU (EUVD) identifier?: Yes. CVE-2025-8058 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-22469.
When was CVE-2025-8058 published?: CVE-2025-8058 was published on 2025-07-23 and last updated on 2026-06-17.

References

Other CWE-415 (Double Free) vulnerabilities

CVE-2018-0101 — Critical (CVSS 10.0): A vulnerability in the Secure Sockets Layer (SSL) VPN functionality of the Cisco Adaptive Security Appliance (ASA)…
CVE-2026-8925 — Critical (CVSS 9.8): The curl logic that works with SASL authentication could end up cleaning up the GSASL context *twice* without clearing…
CVE-2020-37239 — Critical (CVSS 9.8): libbabl 0.1.62 contains a broken double free detection vulnerability that allows attackers to bypass memory safety…
CVE-2026-43414 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Completely fix fcport double…
CVE-2026-43011 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: net/x25: Fix potential double free of skb When…
CVE-2026-31609 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: smb: client: avoid double-free in…

Browse all CWE-415 (Double Free) vulnerabilities →