CVE-2021-26383 HIGH

CVE-2021-26383

Weakness CWE-787
Published September 5, 2025
Last update September 8, 2025

CVSS base score

7.9/10
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Confidentiality None
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H

What the vulnerability does

01Description

Insufficient bounds checking in AMD TEE (Trusted Execution Environment) could allow an attacker with a compromised userspace to invoke a command with malformed arguments leading to out of bounds memory access, potentially resulting in loss of integrity or availability.

Key dates

02Disclosure timeline

September 5, 2025 CVE published
September 8, 2025 Record updated