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CVE-2026-98159

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921: validate CLC firmware records The CLC region is supplied by firmware, but the loader trusts the region coun…

Published Sep 25, 2026linuxCWE-787EPSS 0.11%

Overview

CVE-2026-98159 is a medium-severity vulnerability affecting linux linux_kernel. It was published on September 25, 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:

wifi: mt76: mt7921: validate CLC firmware records

The CLC region is supplied by firmware, but the loader trusts the

region count and each record length. A malformed image can make the

region table pointer precede the firmware buffer, make the record loop

fail to advance, or index phy->clc past its end. Validate the table and

record bounds before dereferencing or copying.

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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.

Affected products

VendorProductVersionsStatus
linuxlinux_kernel>= 6.1, < 6.1.189Affected

References

Refgit.kernel.org/stable/c/3896be051e928c891922d91de94c99519d215dffRefgit.kernel.org/stable/c/3c505e2af16a9320f4355218394a955fbbc65322Refgit.kernel.org/stable/c/46673662402884ca55a869e4ebe956e08e8b6b05Refgit.kernel.org/stable/c/602a950134ee2940136f60797e4457c3983b06ceRefgit.kernel.org/stable/c/740272d46ffc8231709a5e774cf5e4a5785b8a02Refgit.kernel.org/stable/c/9417c5818a0146980c2608fda94c908e604eb033

How CyberStrike helps

Frequently asked questions

What is CVE-2026-98159?

CVE-2026-98159 is a medium-severity vulnerability affecting linux linux_kernel. It was published on September 25, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-98159?

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-2026-98159?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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-2026-98159?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-98159 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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