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TI-2025-35720 Aliases CVE-2025-57851GHSA-87qg-cwpg-cjvw

Mce: privilege escalation via excessive /etc/passwd permissions

Priority LOW 30CWE-276Published · Updated

Key facts

Attack vector
Local
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00117 1st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Red HatMulticluster Engine for Kubernetes——No fix listedCNA
Red HatMulticluster Engine for Kubernetes——No fix listedCNA
Red HatMulticluster Engine for Kubernetes——No fix listedCNA
  • Multicluster Engine for Kubernetes VendorRed Hat Affected — Fixed in — No fix listed CNA
  • Multicluster Engine for Kubernetes VendorRed Hat Affected — Fixed in — No fix listed CNA
  • Multicluster Engine for Kubernetes VendorRed Hat Affected — Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:redhat:advanced_cluster_management_for_kubernetes:-:*:*:*:*:*:*:*not specified by NVDVulnerableRed Hat
  • cpe:2.3:a:redhat:advanced_cluster_management_for_kubernetes:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Red Hat

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Multicluster Engine for KubernetesAffectedNo fix yet

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-57851
  2. 2026-10-03 Alias added: GHSA-87qg-cwpg-cjvw

References

Advisory 2

  • TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
  • TI-2025-13566 Nodemailer: nodemailer: denial of service via crafted email address header CVSS 3.1HIGH 7.5
  • TI-2026-32429 Axios: Credential Theft and Response Hijacking via Prototype Pollution Gadget in Config Merge CVSS 3.1HIGH 7.7
  • TI-2026-23208 Immutable.js: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') in immutable CVSS 4.0HIGH 8.7
  • TI-2022-10313 The golang.org/x/crypto/ssh package before 0.0.0-20220314234659-1baeb1ce4c0b for Go… CVSS 3.1HIGH 7.5
  • TI-2026-04135 Improper certificate validation in Red Hat multicluster engine for Kubernetes 2.1 CVSS 3.1HIGH 8.2
See all 17 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences