What is CVE-2025-57851?

CVE-2025-57851 is a medium-severity vulnerability in Red Hat Multicluster Engine For Kubernetes, classified under Incorrect Default Permissions. CVSS score: 6.4/10. Published 2026-04-08.

How severe is CVE-2025-57851?

Medium severity. CVSS v3 base score is 6.4 out of 10.

Vulnerability in Red Hat Multicluster Engine For Kubernetes

CVE-2025-57851

A container privilege escalation flaw was found in certain Multicluster Engine for Kubernetes images. This issue stems from the /etc/passwd file being created with group-writable permissions during build time. In certain conditions, an att…

EPSS: 0.000 (0.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-276 — Incorrect Default Permissions

References

secalert@redhat.com (x_refsource_REDHAT, vdb-entry, Vendor Advisory)
RHBZ#2391104 (x_refsource_REDHAT, issue-tracking, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2025-57851?: CVE-2025-57851 is a medium-severity vulnerability in Red Hat Multicluster Engine For Kubernetes, classified under Incorrect Default Permissions. CVSS score: 6.4/10. Published 2026-04-08.
How severe is CVE-2025-57851?: Medium severity. CVSS v3 base score is 6.4 out of 10.