CVE-2025-40276

Name: CVE-2025-40276
Creator: NVD / NIST
Published: 2025-12-06T22:15:55.433+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.17%

Last modified Jun 17, 2026

CVE-2025-40276 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: drm/panthor: Flush shmem writes before mapping buffers CPU-uncached The shmem layer zeroes out the new pages using cached mappings, and if we don't CPU-flush we might leave dirty cachelines behind, leading to potential data leaks and/or asynchronous buffer corruption when dirty cachelines are evicted.. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: drm/panthor: Flush shmem writes before mapping buffers CPU-uncached The shmem layer zeroes out the new pages using cached mappings, and if we don't CPU-flush we might leave dirty cachelines behind, leading to potential data leaks and/or asynchronous buffer corruption when dirty cachelines are evicted.

Metrics

EPSS Probability

0.17%

6.6th percentile

Probability of exploitation in the next 30 days. Learn more

References

Timeline

Published: Dec 6, 2025
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2025-40276?

How severe is CVE-2025-40276?

Severity scoring for CVE-2025-40276 is pending analysis. The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.

How do I fix CVE-2025-40276?

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-2025-40276?

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

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Source: NVD / NIST