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CVE-2025-39705

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix a Null pointer dereference vulnerability [Why] A null pointer dereference vulnerability exists in the AMD…

Published Sep 5, 2025CWE-476EPSS 0.15%

Overview

CVE-2025-39705 is a medium-severity vulnerability. It was published on September 5, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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

drm/amd/display: fix a Null pointer dereference vulnerability

[Why]

A null pointer dereference vulnerability exists in the AMD display driver's

(DC module) cleanup function dc_destruct().

When display control context (dc->ctx) construction fails

(due to memory allocation failure), this pointer remains NULL.

During subsequent error handling when dc_destruct() is called,

there's no NULL check before dereferencing the perf_trace member

(dc->ctx->perf_trace), causing a kernel null pointer dereference crash.

[How]

Check if dc->ctx is non-NULL before dereferencing.

(Updated commit text and removed unnecessary error message)

(cherry picked from commit 9dd8e2ba268c636c240a918e0a31e6feaee19404)

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/0961673cc5f0055957aa46f25eb4ef6c07e00165Refgit.kernel.org/stable/c/1bcf63a44381691d6192872801f830ce3250e367Refgit.kernel.org/stable/c/4ade995b9b25b3c6e8dc42c27070340f1358d8c8

How CyberStrike helps

Frequently asked questions

What is CVE-2025-39705?

CVE-2025-39705 is a medium-severity vulnerability. It was published on September 5, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-39705?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-39705?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-39705?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-39705 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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