What is CVE-2025-4574?

CVE-2025-4574 is a medium-severity vulnerability in Red Hat Directory Server 11, classified under Double Free. CVSS score: 6.5/10. Published 2025-05-13.

How severe is CVE-2025-4574?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Double Free in Red Hat Directory Server 11

CVE-2025-4574

In crossbeam-channel rust crate, the internal `Channel` type's `Drop` method has a race condition which could, in some circumstances, lead to a double-free that could result in memory corruption.

Vulnerability class: Double Free

Published 2025-05-13 · last modified 2026-06-30.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.

EPSS exploit prediction

EPSS: 0.005 (43.2th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-415 — Double Free

References

access.redhat.com/security/cve/CVE-2025-4574 (vdb-entry)
bugzilla.redhat.com/show_bug.cgi (issue-tracking)
github.com/advisories/GHSA-pg9f-39pc-qf8g
github.com/crossbeam-rs/crossbeam/pull/1187

Frequently asked questions

What is CVE-2025-4574?: CVE-2025-4574 is a medium-severity vulnerability in Red Hat Directory Server 11, classified under Double Free. CVSS score: 6.5/10. Published 2025-05-13.
How severe is CVE-2025-4574?: Medium severity. CVSS v3 base score is 6.5 out of 10.