CVE-2025-40021 Affecting kernel-uek-container-debug package, versions <0:5.15.0-315.196.5.1.el9uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.06% (20th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ORACLE9-KERNELUEKCONTAINERDEBUG-14408941
  • published13 Dec 2025
  • disclosed24 Oct 2025

Introduced: 24 Oct 2025

CVE-2025-40021  (opens in a new tab)

How to fix?

Upgrade Oracle:9 kernel-uek-container-debug to version 0:5.15.0-315.196.5.1.el9uek or higher.
This issue was patched in ELSA-2025-28048.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-container-debug package and not the kernel-uek-container-debug package as distributed by Oracle. See How to fix? for Oracle:9 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

tracing: dynevent: Add a missing lockdown check on dynevent

Since dynamic_events interface on tracefs is compatible with kprobe_events and uprobe_events, it should also check the lockdown status and reject if it is set.

CVSS Base Scores

version 3.1