Zenbleed: security flaw corrected by new bios!


MSI is one of the first motherboard manufacturers to deploy the AGESA 1.2.0.Ça code via a BIOS update. The purpose of this update is to correct a security flaw known as Zenbleed. This update is being deployed primarily on X570 motherboards, as well as various 400-series models, and concerns different CPUs.

Zenbleed: a patch deployed by MSI!

MSI Meg X570 Unify - Zenbleed

Zenbleed is a medium-threat vulnerability identified under the code CVE-2023-20593. When exploited, it allows unauthorized access to sensitive data. This flaw affects various AMD processors. MSI therefore deploys this upgraded code via BIOS updates. These are primarily available for X570 motherboards and certain 400-series models.

On the performance side, certain workloads may be affected by the patch. In such cases, the drop may be as much as 15%. However, if you’re a gamer, don’t panic, you shouldn’t be affected.

Finally, we learn that AMD is correcting this problem beyond its AM4 platform. Indeed, this flaw affects processors based on the Zen2 architecture, which means Epyc 7002 CPUs, Threadripper 3000s, mobile versions and even the embedded sector! However, Ryzen Embedded V2000 chips are still waiting for an EmbeddedPi-FP6 patch.