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Fencer Intel
high 8.2

CVE-2025-3528 json

Mirror-registry: local privilege escalation due to incorrect permissions in mirror-registry

published last yr. modified 4mo ago also EUVD-2025-14164

cvss
8.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 14%
public exploits
0
none known

Summary

A flaw was found in the Mirror Registry. The quay-app container shipped as part of the Mirror Registry for OpenShift has write access to the `/etc/passwd`. This flaw allows a malicious actor with access to the container to modify the passwd file and elevate their privileges to the root user within that pod.

Patch / fix

  • Red Hat MIRROR-REGISTRY-2.0-RHEL-8 v2.0.7-9

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-3528 updated cvss 8.2

mirror-registry: Local privilege escalation due to incorrect permissions in mirror-registry

  • Red Hat mirror registry for Red Hat OpenShift openshift/mirror-registry-rhel8
    affected: workaround, no fix available
  • Red Hat mirror registry 2.0.0 for RHEL 8 openshift/mirror-registry-rhel8 v2.0.7-9
    fixed: vendor fix RHBA-2025:9645

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
last yr.

Exploit prediction

0.23% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 8.2 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Affected products

  • Red Hat MIRROR-REGISTRY-2.0-RHEL-8
  • Red Hat mirror registry for Red Hat OpenShift

Classification

Weakness
  • CWE-276 Incorrect Default Permissions

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.