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Vulnerabilities

Vulnerability · CVE-2025-57848

A container privilege escalation flaw was found in certain Container-native Virtualization images.

Published Oct 23, 2025 · catalog updated Aug 6, 2026 · Red Hat RHEL-9-CNV-4.18

Last checked Oct 27, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-57848. EPSS is 0.19%. Act only if a listed version of Red Hat RHEL-9-CNV-4.18 is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.19%
Remediation
Advisory link
Affected products
vendor Red Hat RHEL-9-CNV-4.18 patch: v4.18.22-8

A container privilege escalation flaw was found in certain Container-native Virtualization 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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Red Hat RHEL-9-CNV-4.18 patch: v4.18.22-8patch: v4.18.22-8

How to fix CVE-2025-57848

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-57848. EPSS is 0.19%. Act only if a listed version of Red Hat RHEL-9-CNV-4.18 is installed.

Which versions are affected?

Compare what you have installed with Red Hat RHEL-9-CNV-4.18 patch: v4.18.22-8 patch: v4.18.22-8. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.19%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 23, 2025 · EUVD

    Detected

    A container privilege escalation flaw was found in certain Container-native Virtualization 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

  2. Aug 6, 2026 · EUVD

    Updated

    A container privilege escalation flaw was found in certain Container-native Virtualization 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

Sources

  • CVE.orgVulnerability recordCVE-2025-57848

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-57848

    30-day exploitation probability 0.19%

    first.org
  • EUVDVulnerability recordEUVD-2025-35712

    A container privilege escalation flaw was found in certain Container-native Virtualization 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 aff

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 27, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 27, 2026
  • CVE.orgOct 23, 2026
  • EUVDOct 23, 2026