SB20260905178 - Out-of-bounds read in Linux kernel hid driver

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB20260905178

SB20260905178 - Out-of-bounds read in Linux kernel hid driver

Published: September 5, 2026

Security Bulletin ID SB20260905178
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Physical access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Out-of-bounds read (CVE-ID: CVE-2026-80781)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: 2.4 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows an attacker with physical access to read memory beyond the bounds of a HID usage array.

The vulnerability exists due to an out-of-bounds read in hid_set_field() when processing an offset for a HID field. An attacker with physical access can attach a HID device that registers a field with fewer usages than the offsets used by picolcd_fb_send_tile() to read memory beyond the bounds of a HID usage array.

The out-of-bounds dereference occurs when CONFIG_DEBUG_FS is enabled during framebuffer deferred-io work.


Remediation

Install update from vendor's website.

References