CVE-2025-57848

Container root escalation via group-writable /etc/passwd

Published Oct 23, 2025 · Updated Oct 23, 2025

Incorrect permissions in Red Hat OpenShift Virtualization 4 allow local users to gain root privileges inside an affected container. The image build creates /etc/passwd as group-writable, so a non-root process in group root can append an account with UID 0. Exploitation requires command execution in the container and root-group membership; the default restricted-v2 SCC blocks the required setuid and setgid operations.

CVSS severity6.4
Medium
EPSS probability0.18%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect permissions in Red Hat OpenShift Virtualization 4 allow local users to gain root privileges inside an affected container. The image build creates /etc/passwd as group-writable, so a non-root process in group root can append an account with UID 0. Exploitation requires command execution in the container and root-group membership; the default restricted-v2 SCC blocks the required setuid and setgid operations.

The record

CVE
CVE-2025-57848
Published
Oct 23, 2025
Updated
Oct 23, 2025
Vendor
389 Directory Server
Product
Red Hat OpenShift Virtualization 4
Classifications
CWE-276, T1136.001
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Oct 23, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 23, 2025Record 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 privilegesUnavailable in this record.

What is affected?

389 Directory Server · Red Hat OpenShift Virtualization 4Affected versions are unavailable in this record.

Published CVSS scores

6.4Red Hat, Inc.CVSS: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 11, 2026Sep 17, 2026
Latest reporting daySep 17, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-276Incorrect Default Permissions
T1136.001Create Account: Local Account

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

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Your stack

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