CVE-2025-57851
mediumpriority · track · 27OT risk · elevatedEPSS 0.001 · 1 %ileDEEUUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (7)
Products and version ranges known to be affected.
- Red Hat Ansible Automation Platformall versionscert_bundDEcpe:/a:redhat:ansible_automation_platform:-
- Red Hat Enterprise Linux Multicluster Engine for Kubernetesall versionscert_bundDEcpe:/o:redhat:enterprise_linux:multicluster_engine_for_kubernetes
- Red Hat Enterprise Linux Web Terminalall versionscert_bundDEcpe:/o:redhat:enterprise_linux:web_terminal
- redhat advanced cluster management for kubernetesall versionsnvdUScpe:2.3:a:redhat:advanced_cluster_management_for_kubernetes:*:*:*:*:*:*:*:*
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-1033Verschiedene Red Hat Produkte: Mehrere Schwachstellen ermöglichen Erlangen von AdministratorrechtenDeutsch2026-04-08csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in mehreren Red Hat-Produkten ausnutzen, um Administratorrechte zu erlangen.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/CVE-2025-57851cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2391104cnnvd
- https://docs.redhat.com/en/documentation/openshift_container_platform/4.12/html/architecture/about-the-multicluster-engine-for-kubernetes-operatorPatchcnnvd
- https://access.redhat.com/security/cve/CVE-2025-57851enisa_euvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2391104enisa_euvd
- https://access.redhat.com/security/cve/CVE-2025-57851Vendor Advisorynvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2391104Issue TrackingVendor Advisorynvd
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