CVE-2025-21940

Name: CVE-2025-21940
Creator: NVD / NIST
Published: 2025-04-01T16:15:24.873+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.18%

Last modified Jun 17, 2026

CVE-2025-21940 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix NULL Pointer Dereference in KFD queue Through KFD IOCTL Fuzzing we encountered a NULL pointer derefrence when calling kfd_queue_acquire_buffers. (cherry picked from commit 049e5bf3c8406f87c3d8e1958e0a16804fa1d530). EPSS estimates a 0.18% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix NULL Pointer Dereference in KFD queue Through KFD IOCTL Fuzzing we encountered a NULL pointer derefrence when calling kfd_queue_acquire_buffers. (cherry picked from commit 049e5bf3c8406f87c3d8e1958e0a16804fa1d530)

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.18%

7.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Linux	Linux Kernel	>= 6.12, < 6.12.19	—
Linux	Linux Kernel	>= 6.13, < 6.13.7	—
Linux	Linux Kernel	6.14	Rc1

References

Timeline

Published: Apr 1, 2025
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2025-21940?

How severe is CVE-2025-21940?

CVE-2025-21940 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.

How do I fix CVE-2025-21940?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-21940?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST