CVE-2021-39298

high

Description

A potential vulnerability in AMD System Management Mode (SMM) interrupt handler may allow an attacker with high privileges to access the SMM resulting in arbitrary code execution which could be used by malicious actors to bypass security mechanisms provided in the UEFI firmware.

References

https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032

https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1027

Details

Source: Mitre, NVD

Published: 2022-02-16

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.2

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

Severity: High

CVSS v3

Base Score: 8.8

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

Severity: High

EPSS

EPSS: 0.00035