🛡️ CVE-2025-4437
🟡 CVSS 5.7 — Medium ✅ No Known Exploit CWE-770 NVD
5.7
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity Medium
CVSS Score 5.7
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
CWE CWE-770
Public Exploit ✅ No
Source NVD
Published 2025-08-20
Updated 2026-06-15
Modified 2025-08-29
Fix URL N/A

Affected Packages

Software From version Fixed in
github.com/cri-o/cri-o — —
unknown — —

Similar Threats

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