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CVE-2026-80751

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: pmdomain: mediatek: mfg: initialize prev_o in mtk_mfg_attach_dev() mtk_mfg_attach_dev() reads prev_o on the first iteration of…

Published Sep 3, 2026EPSS 0.17%

Overview

CVE-2026-80751 is a high-severity vulnerability. It was published on September 3, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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:

pmdomain: mediatek: mfg: initialize prev_o in mtk_mfg_attach_dev()

mtk_mfg_attach_dev() reads prev_o on the first iteration of its loop,

in "if (prev_o && prev_o->freq == o->freq)", before prev_o is assigned

at the end of the loop body. On that first iteration, evaluating prev_o

reads an indeterminate value. If it is non-NULL, the condition

dereferences a stale or invalid pointer, potentially faulting or

incorrectly skipping the first OPP.

Initialize prev_o to NULL. This matches the intent as well: there is no

previous OPP to compare against on the first iteration.

Found with Clang's -Wconditional-uninitialized.

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/090a95dbe13df9965279b588d97eda134831769cRefgit.kernel.org/stable/c/de4eec0dfde8c0e27f8915bbb244d17ff68f2fb4

How CyberStrike helps

Frequently asked questions

What is CVE-2026-80751?

CVE-2026-80751 is a high-severity vulnerability. It was published on September 3, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-80751?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-80751?

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-2026-80751?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-80751 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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