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CVE-2026-80574

HIGHCVSS 8.4/10

Last modified

CVE-2026-80574 is a high-severity vulnerability rated 8.4/10 on the CVSS scale. 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]..

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].

Metrics

CVSS 3.1
8.4/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 05be1d079ec0b3691783e4384b1ada82149ff7d2, < 063b4c6a6f3fc01bca085c442000c9c100fdbd93; >= 05be1d079ec0b3691783e4384b1ada82149ff7d2, < bb502d79acb9ac1e0a77fa8bc7b7b4729140b11f; >= 05be1d079ec0b3691783e4384b1ada82149ff7d2, < ca92c98b806839c108995b2bbff7061515bdfb53; >= 05be1d079ec0b3691783e4384b1ada82149ff7d2, < 81b07470cb2937ceb74b00be88151582a322433b; >= 05be1d079ec0b3691783e4384b1ada82149ff7d2, < 6f6d5fe29efdf5001bc146fc292e6592cace93eb; >= 05be1d079ec0b3691783e4384b1ada82149ff7d2, < 83c265bfc084d77e2171d4b67362150ab38c935b; >= 05be1d079ec0b3691783e4384b1ada82149ff7d2, < 1842e47126816e56d30c4f856f9854fd7831066c; >= 05be1d079ec0b3691783e4384b1ada82149ff7d2, < 296736076b3fd078742651c719555a488624023a
LinuxLinux4.0

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-80574?
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].
How severe is CVE-2026-80574?
CVE-2026-80574 has a CVSS score of 8.4/10 (HIGH severity).
How do I fix CVE-2026-80574?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST