CVE-2020-12890

—

CVSS 3.1

6.7 medium

EPSS

<1%p20

Published

Dec 10, 2021 (Dec 10, 2021)

Modified

Jun 17, 2026

Description

Improper handling of pointers in the System Management Mode (SMM) handling code may allow for a privileged attacker with physical or administrative access to potentially manipulate the AMD Generic Encapsulated Software Architecture (AGESA) to execute arbitrary code undetected by the operating system.

Vendors: amd
Products: amd generic encapsulated software architecture
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.3%)

In the news1 stories

AMD is going to patch UEFI SMM callout privilege escalation flaw

Security AffairsJun 22, 13:18 UTC · Jun 22, 2020Vulnerability CVE-2020-12890