#VU124519 Type conversion in Linux kernel - CVE-2026-23323
Published: March 25, 2026
Vulnerability identifier: #VU124519
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-23323
CWE-ID: CWE-704
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to cause a denial of service, disclose sensitive information, and modify system settings.
The vulnerability exists due to improper input validation in the macsmc-hwmon driver when processing sensor data. A local user can trigger out-of-bounds memory access and incorrect float value conversions to cause a denial of service, disclose sensitive information, and modify system settings.
The attacker must have access to the system with user privileges to interact with the hwmon interface. The vulnerability specifically affects sensor population logic and float conversion routines in the Apple Silicon SMC hwmon driver.
Remediation
Install security update from vendor's repository.