Asus lets processor security fix slip out early, AMD confirms patch in progress

AMD confirmed a microcode signature verification vulnerability affecting some of its processors after an ASUS beta BIOS update leaked a patch; the flaw allows someone with local administrator privileges to load or manipulate microcode, potentially undermining low-level protections. AMD and Google have published advisories and mitigations are being deployed, but impacted product details and evidence of active exploitation have not been disclosed.