CVE-2025-4437 – CRI-O Denial-of-Service Vulnerability

The following table lists the changes that have been made to the
CVE-2025-4437 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Aug. 20, 2025

    Action Type Old Value New Value
    Added Description There’s a vulnerability in the CRI-O application where when container is launched with securityContext.runAsUser specifying a non-existent user, CRI-O attempts to create the user, reading the container’s entire /etc/passwd file into memory. If this file is excessively large, it can cause the a high memory consumption leading applications to be killed due to out-of-memory. As a result a denial-of-service can be achieved, possibly disrupting other pods and services running in the same host.
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
    Added CWE CWE-770
    Added Reference https://access.redhat.com/security/cve/CVE-2025-4437
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2375084
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