CVE-2021-46750

Published: Sep 6, 2025Modified: Jun 17, 2026Deferred

3.0

Vector

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

Exploitability: 0.5 / Impact: 2.5

Source: psirt@amd.com (Secondary)

Description

Failure to validate the address and size in TEE (Trusted Execution Environment) may allow a malicious x86 attacker to send malformed messages to the graphics mailbox resulting in an overlap of a TMR (Trusted Memory Region) that was previously allocated by the ASP bootloader leading to a potential loss of integrity.

Related CWEs

CWE-190

Integer Overflow or Wraparound

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

References (3)

https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4012.html

Source: psirt@amd.com

https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-5007.html

Source: psirt@amd.com

https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6018.html

Source: psirt@amd.com

Timeline

No history available yet.