Exposed IOCTL with Insufficient Access Control in Core Temp - CVE-2026-109836
Published: November 2, 2026
Vulnerability identifier: #VU158573
CSH Severity: Low
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-109836
CWE-ID: CWE-782
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to exposed IOCTL with improper access control. A local administrator can read or writte physical memory.
Affected software
Core Temp
How to mitigate CVE-2026-109836
Install updates from vendor's website.
Core Temp - update to 1.21