Unfixable AMD CPU Exploit

New exploit: “xor dword [0xf80c2094], 1<<22” Unlocks CPU microcode, the platform security processor, system management mode, and every internal processor register, all at once, on 100 million AMD CPUs. As far as I can tell can’t be fixed.

A screenshot of an X post describes a supposedly catastrophic exploit that unlocks CPU microcode, platform security controls, system management mode, and internal registers on millions of AMD processors. The joke is the exaggerated claim that one tiny bitwise operation compromises everything and cannot be fixed, making it a humorous reaction to an absurdly powerful vulnerability. EN: A screenshot of an X post describes a supposedly catastrophic exploit that unlocks CPU microcode, platform security controls, system management mode, and internal registers on millions of AMD processors. The joke is the exaggerated claim that one tiny bitwise operation compromises everything and cannot be fixed, making it a humorous reaction to an absurdly powerful vulnerability.

• @gentoomemes / 21681 2026-08-13