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CVE-2026-80635

8.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: wifi: wcn36xx: fix OOB read from short trigger BA firmware response The firmware response length is only checked against sizeof…

Published Aug 28, 2026EPSS 0.40%

Overview

CVE-2026-80635 is a high-severity vulnerability. It was published on August 28, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

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

wifi: wcn36xx: fix OOB read from short trigger BA firmware response

The firmware response length is only checked against sizeof(*rsp) (20

bytes), but when candidate_cnt >= 1, a 22-byte candidate struct is read

at buf + 20 without verifying the response contains it. This causes an

out-of-bounds read of stale heap data, corrupting the BA session state.

Add validation that the response includes the candidate data.

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/04aba50212f9f274e1a726fb3873b5ce8da2d821Refgit.kernel.org/stable/c/af8f0ea1f0a3a5fb5ed2b8fed3f1501d644597eeRefgit.kernel.org/stable/c/b5e6f21923ca89d90256e7346301056f6502691eRefgit.kernel.org/stable/c/c07aa0534d50361183833e3803204044cf1d0476Refgit.kernel.org/stable/c/d0b57bcd0dac6e2c9a3e474ec280e7db0b3edf35Refgit.kernel.org/stable/c/d0cafe6ed8d1f6d0097eda31d85f5760d4f359c2

How CyberStrike helps

Frequently asked questions

What is CVE-2026-80635?

CVE-2026-80635 is a high-severity vulnerability. It was published on August 28, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-80635?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-80635?

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-2026-80635?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-80635 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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