CVE-2025-57851

MEDIUM EPSS 1.7%
Published Apr 8, 20262mo ago · Modified Jun 17, 20261w ago
6.7 CVSS 3.1
Medium
Find Similar
Published Apr 8, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

Description

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 attacker who can execute commands within an affected container, even as a non-root user, can leverage their membership in the root group to modify the /etc/passwd file. This could allow the attacker to add a new user with any arbitrary UID, including UID 0, leading to full root privileges within the container.

CVSS Details

Base Score
6.7
Exploitability
0.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required High
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
1.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-276

Affected Products 1

VendorProductVersionRange
redhatadvanced_cluster_management_for_kubernetes*any

References 2

  • access.redhat.com https://access.redhat.com/security/cve/CVE-2025-57851
    Vendor Advisory
  • bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2391104
    Issue TrackingVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.