CVE-2026-80574 (CVSS 8.4)

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].

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CVSS v3.1 Score

8.4

HIGH

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

EPSS — Exploit Prediction

0.0013

Probability of exploitation

0.03%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other References

https://git.kernel.org/stable/c/063b4c6a6f3fc01bca085c442000c9c100fdbd93 https://git.kernel.org/stable/c/1842e47126816e56d30c4f856f9854fd7831066c https://git.kernel.org/stable/c/296736076b3fd078742651c719555a488624023a https://git.kernel.org/stable/c/6f6d5fe29efdf5001bc146fc292e6592cace93eb https://git.kernel.org/stable/c/81b07470cb2937ceb74b00be88151582a322433b https://git.kernel.org/stable/c/83c265bfc084d77e2171d4b67362150ab38c935b https://git.kernel.org/stable/c/bb502d79acb9ac1e0a77fa8bc7b7b4729140b11f https://git.kernel.org/stable/c/ca92c98b806839c108995b2bbff7061515bdfb53

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]. It has a CVSS v3.1 base score of 8.4 (HIGH).

How severe is CVE-2026-80574? +

CVE-2026-80574 has a CVSS v3.1 score of 8.4 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0013, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-80574? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

CVE-2026-80574