SB20260727216 - Use-after-free in Linux kernel hid driver



SB20260727216 - Use-after-free in Linux kernel hid driver

Published: July 27, 2026

Security Bulletin ID SB20260727216
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Use-after-free (CVE-ID: CVE-2026-64363)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 7.3 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local attacker to execute arbitrary code or cause a denial of service.

The vulnerability exists due to use-after-free in the appleir HID driver when processing concurrent device teardown and timer or raw event handling. A local attacker can trigger device disconnection shortly after key events to execute arbitrary code or cause a denial of service.

Exploitation requires a pending key-up timer or concurrent raw event activity to race with device removal.


Remediation

Install update from vendor's website.