CVE-2025-57854

Container root escalation via group-writable passwd file

Published Apr 8, 2026 · Updated Apr 8, 2026

Incorrect default permissions in Red Hat OpenShift Update Service images allow local users to gain root privileges within a container. The image build creates /etc/passwd as root-group writable, allowing a process in group 0 to append an account with UID 0. Exploitation requires command execution inside the affected container and root-group membership; success grants full root control within that container.

CVSS severity6.4
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect default permissions in Red Hat OpenShift Update Service images allow local users to gain root privileges within a container. The image build creates /etc/passwd as root-group writable, allowing a process in group 0 to append an account with UID 0. Exploitation requires command execution inside the affected container and root-group membership; success grants full root control within that container.

The record

CVE
CVE-2025-57854
Published
Apr 8, 2026
Updated
Apr 8, 2026
Vendor
389 Directory Server
Product
Red Hat OpenShift Update Service
Classifications
CWE-276, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

389 Directory Server · Red Hat OpenShift Update ServiceAffected versions are unavailable in this record.

Published CVSS scores

6.4Red HatCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-276Incorrect Default Permissions
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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