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CVE-2026-63947

kernel: Bluetooth: HIDP: fix missing length checks in hidp_input_report()

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Severity

Moderate

Red Hat Product Security

7

CVSS 3.1

Review impact separately from score.

Published · July 19, 2026

Updated · October 13, 2026

Description

A flaw was found in the Linux kernel's Bluetooth Human Interface Device Protocol (HIDP). A remote attacker, by sending specially crafted truncated packets from a paired Bluetooth device, could trigger an out-of-bounds read in the hidp_input_report() function. This vulnerability may lead to unintended input, such as phantom key presses or spurious mouse movements, potentially affecting system integrity or user interaction.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-125 · Out-of-bounds Read