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CVE-2023-53389

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: dp: Only trigger DRM HPD events if bridge is attached The MediaTek DisplayPort interface bridge driver starts its…

Published Sep 18, 2025CWE-476EPSS 0.15%

Overview

CVE-2023-53389 is a medium-severity vulnerability. It was published on September 18, 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/mediatek: dp: Only trigger DRM HPD events if bridge is attached

The MediaTek DisplayPort interface bridge driver starts its interrupts

as soon as its probed. However when the interrupts trigger the bridge

might not have been attached to a DRM device. As drm_helper_hpd_irq_event()

does not check whether the passed in drm_device is valid or not, a NULL

pointer passed in results in a kernel NULL pointer dereference in it.

Check whether the bridge is attached and only trigger an HPD event if

it is.

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/3551789d0635dfb2df8ab8e7fdbf0647e9c1724cRefgit.kernel.org/stable/c/36b617f7e4ae663fcadd202ea061ca695ca75539Refgit.kernel.org/stable/c/6524d3d58797975cc40b85be1e9b89721b4e8d0bRefgit.kernel.org/stable/c/d1c04e338016ae2517c641806a831b1f3eee2bed

How CyberStrike helps

Frequently asked questions

What is CVE-2023-53389?

CVE-2023-53389 is a medium-severity vulnerability. It was published on September 18, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-53389?

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-2023-53389?

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-2023-53389?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-53389 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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