SB20260816166 - Memory corruption in Linux kernel hwmon driver

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Main Vulnerability Database SB20260816166

SB20260816166 - Memory corruption in Linux kernel hwmon driver

Published: August 16, 2026

Security Bulletin ID SB20260816166
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Memory corruption (CVE-ID: CVE-2026-74551)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local user to cause memory corruption.

The vulnerability exists due to improper memory alignment in the nzxt-smart2 driver output buffer when sending output reports through the USB HID core for DMA. A local user can trigger device operations such as setting a fan speed or updating the interval to cause memory corruption.

This issue affects systems with non-coherent CPU architectures such as ARM or MIPS, where the corruption is immediate and deterministic due to cacheline sharing with adjacent variables.


Remediation

Install update from vendor's website.

References