CVE-2025-35973

Public on 2026-08-11
Modified on 2026-08-13
Description
Improper handling of values for some Intel(R) Processors within Ring 0: Kernel, Hypervisor and Bare Metal OS may allow an escalation of privilege. Authorized adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present with special internal knowledge and require no user interaction. The potential vulnerability may impact the confidentiality (low), integrity (low) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (none) impacts.
Severity
Important severity
Important
See what this means
CVSS v3 Base Score
7.2
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core microcode_ctl 2026-08-31 ALAS2-2026-3872 Fixed
Amazon Linux 2023 microcode_ctl 2026-08-31 ALAS2023-2026-2080 Fixed

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.2 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N