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CVE-2026-80574

8.4 · HIGH

In the Linux kernel, the following vulnerability has been resolved: Input: focaltech - fix array out-of-bounds in focaltech_process_rel_packet Make finger2 (and also finger1) unsigned, so that if…

Published Aug 26, 2026EPSS 0.13%

Overview

CVE-2026-80574 is a high-severity vulnerability. It was published on August 26, 2026 and has a CVSS 3.1 base score of 8.4 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.4, 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:

Input: focaltech - fix array out-of-bounds in focaltech_process_rel_packet

Make finger2 (and also finger1) unsigned, so that if the finger index in

the packet is 0 then subtracting 1 creates an array index which overflows

above the existing check for FOC_MAX_FINGERS, as the existing comment says

it should, instead of writing to state->fingers[-1].

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/063b4c6a6f3fc01bca085c442000c9c100fdbd93Refgit.kernel.org/stable/c/1842e47126816e56d30c4f856f9854fd7831066cRefgit.kernel.org/stable/c/296736076b3fd078742651c719555a488624023aRefgit.kernel.org/stable/c/6f6d5fe29efdf5001bc146fc292e6592cace93ebRefgit.kernel.org/stable/c/81b07470cb2937ceb74b00be88151582a322433bRefgit.kernel.org/stable/c/83c265bfc084d77e2171d4b67362150ab38c935bRefgit.kernel.org/stable/c/bb502d79acb9ac1e0a77fa8bc7b7b4729140b11fRefgit.kernel.org/stable/c/ca92c98b806839c108995b2bbff7061515bdfb53

How CyberStrike helps

Frequently asked questions

What is CVE-2026-80574?

CVE-2026-80574 is a high-severity vulnerability. It was published on August 26, 2026 and has a CVSS 3.1 base score of 8.4 (HIGH).

How severe is CVE-2026-80574?

This vulnerability has a CVSS 3.1 base score of 8.4, 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-2026-80574?

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-2026-80574?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-80574 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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