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CVE-2026-89729

8.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: HID: sensor-hub: Fix out-of-bounds write in sensor_hub_get_feature sensor_hub_get_feature() clamps its return value to the call…

Published Sep 11, 2026EPSS 0.36%

Overview

CVE-2026-89729 is a high-severity vulnerability. It was published on September 11, 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:

HID: sensor-hub: Fix out-of-bounds write in sensor_hub_get_feature

sensor_hub_get_feature() clamps its return value to the caller's buffer

size, but the copy loop still copies field->report_size / 8 bytes for

each report value. A malicious HID descriptor can advertise a large

feature field size while an IIO caller supplies a small stack buffer,

such as a single s32, causing an out-of-bounds write.

HID core stores parsed report values in __s32 slots and clamps extracted

values to 32 bits. Reject feature fields that require more than one slot

per value, guard the total byte count calculation, and clamp each

per-value copy to the remaining caller buffer.

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/1c0463f0f028801a933f090cd2695f132635b374Refgit.kernel.org/stable/c/4145aa149a32e4b35d5d47e380d0c6c438b4e6feRefgit.kernel.org/stable/c/8bf8aaf2f74de64f801eb30bc38927dba1f8e40aRefgit.kernel.org/stable/c/9f43499ce6458a572b781f6bb46c464ab59fa825Refgit.kernel.org/stable/c/bc3d72c44bff17688dc5f3e5132a53b51dae0f04Refgit.kernel.org/stable/c/c5c60260a07e627084e792ea959ab468ccfa4d50Refgit.kernel.org/stable/c/c92693f3ed099401d0383ef35ca1fe1e6ba033deRefgit.kernel.org/stable/c/fa95b14198b6c8ea721b4784f466d3c2c2bac83a

How CyberStrike helps

Frequently asked questions

What is CVE-2026-89729?

CVE-2026-89729 is a high-severity vulnerability. It was published on September 11, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-89729?

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-2026-89729?

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-2026-89729?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-89729 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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