CVE-2023-20565 Privilege escalation in Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics “Phoenix” FP7/FP7r2/FP8

High 7.8 Published 14 Nov 2023 Updated 2 Aug 2024

Local attackers can escalate privileges by exploiting insufficient protections in AMD System Management Mode code on Ryzen processors.

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-2023-20565?

CVE-2023-20565 is a high-severity vulnerability in AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics “Phoenix” FP7/FP7r2/FP8, 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-2023-20565?

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-2023-20565?

No fix has been published for CVE-2023-20565 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-20565 being exploited?

There is no known exploitation of CVE-2023-20565 in the wild and no public exploit code.

Sources

Also known as GHSA-w776-w5x6-c2xf.