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CVE-2026-53058

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: drm/bridge: cadence: cdns-mhdp8546-core: Set the mhdp connector earlier in atomic_enable() In case if we get errors in cdns_mhd…

Published Jun 24, 2026CWE-476EPSS 0.16%

Overview

CVE-2026-53058 is a medium-severity vulnerability. It was published on June 24, 2026 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/bridge: cadence: cdns-mhdp8546-core: Set the mhdp connector earlier in atomic_enable()

In case if we get errors in cdns_mhdp_link_up() or cdns_mhdp_reg_read()

in atomic_enable, we will go to cdns_mhdp_modeset_retry_fn() and will hit

NULL pointer while trying to access the mutex. We need the connector to

be set before that. Unlike in legacy cases with flag

!DRM_BRIDGE_ATTACH_NO_CONNECTOR, we do not have connector initialised

in bridge_attach(), so add the mhdp->connector_ptr in device structure

to handle both cases with DRM_BRIDGE_ATTACH_NO_CONNECTOR and

!DRM_BRIDGE_ATTACH_NO_CONNECTOR, set it in atomic_enable() earlier to

avoid possible NULL pointer dereference in recovery paths like

modeset_retry_fn() with the DRM_BRIDGE_ATTACH_NO_CONNECTOR flag set.

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/1af3b42e08a957e53bab8e1897393fe0a27d9fbfRefgit.kernel.org/stable/c/43d6508ddbf9fb974fbc359a033154f78c9d4c8bRefgit.kernel.org/stable/c/5302015daf26ef6b48e067f2b86c9482ac19e015Refgit.kernel.org/stable/c/a3611554e599d1a24b45fd8415bacb72ce861e4bRefgit.kernel.org/stable/c/cf2ac2cac8b319f89b3a3851ca0c5ffb6a549575

How CyberStrike helps

Frequently asked questions

What is CVE-2026-53058?

CVE-2026-53058 is a medium-severity vulnerability. It was published on June 24, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-53058?

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-2026-53058?

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-2026-53058?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-53058 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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