CVE-2020-12890 Privilege escalation in AMD Processors
Privileged attackers with physical or admin access can manipulate AMD AGESA firmware to execute arbitrary code undetected by the OS.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-12890?
CVE-2020-12890 is a medium-severity vulnerability in AMD Processors, published on 10 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2020-12890?
It affects 1 product.
Products include Amd Amd Generic Encapsulated Software Architecture.
How do I fix CVE-2020-12890?
No fix has been published for CVE-2020-12890 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-12890 being exploited?
There is no known exploitation of CVE-2020-12890 in the wild and no public exploit code.
Sources
Also known as GHSA-3h77-rgfr-6455.