CVE-2023-20563 Privilege escalation in AMD Ryzen™ Embedded 5000

High 7.8 Published 14 Nov 2023 Updated 22 Oct 2024

Local attackers can escalate privileges due to insufficient protections in AMD System Management Mode code.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-20563?

CVE-2023-20563 is a high-severity vulnerability in AMD Ryzen™ Embedded 5000, published on 14 Nov 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Insufficient protections in System Management Mode (SMM) code may allow an attacker to potentially enable escalation of privilege via local access.

Weakness: CWE-269

Which versions are affected by CVE-2023-20563?

It affects 71 products.

Products include Amd Ryzen 3 5100 Firmware, Amd Ryzen 3 5125c Firmware, Amd Ryzen 3 5300g Firmware, Amd Ryzen 3 5300ge Firmware, Amd Ryzen 3 5400u Firmware, Amd Ryzen 3 5425u Firmware and 65 more.

How do I fix CVE-2023-20563?

No fix has been published for CVE-2023-20563 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-20563 being exploited?

There is no known exploitation of CVE-2023-20563 in the wild and no public exploit code.

Sources

Also known as GHSA-cjh4-hrfc-4xj7.