Improper isolation or compartmentalization in Intel products - CVE-2025-20109

Vulnerability identifier: #VU124000

CSH Severity: Low

CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2025-20109

CWE-ID: CWE-653

Exploitation vector: Local access

Exploit availability: No public exploit available

Vendor: Intel

Affected software:
12th Generation Intel Core Processors
Intel Pentium Gold Processor Series
Intel Celeron Processors
13th Generation Intel Core Processors
14th Generation Intel Core Processors
Intel Core i9
Intel Xeon E Processors
Intel Core Ultra processor
13th Generation Intel Core i7 processors

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper isolation in the stream cache mechanism. A local user can execute arbitrary code with elevated privileges. 

Install updates from vendor's website.

• https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01249.html