CVE-2021-26383

high

Description

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.

References

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

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

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

Details

Source: Mitre, NVD

Published: 2025-09-06

Updated: 2026-04-15

Risk Information

CVSS v2

Base Score: 5.9

Vector: CVSS2#AV:L/AC:L/Au:M/C:N/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.9

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

Severity: High

EPSS

EPSS: 0.00012