Intel BIOS firmware: Insufficient control-flow management in Intel BIOS firmware lets a privileged user escalate

Impact

Insufficient control-flow management in Intel BIOS firmware lets a privileged user escalate. Broad advisory covering many platform SKUs - check your specific board rather than assuming you are out of scope.

Who can reach it

Privileged local access on the host.

What to do

Fixed in platform BIOS/UEFI firmware. That means an OEM release, a per-node drain, a flash and a cold reboot - and OEM availability commonly lags the Intel advisory by quarters on server boards. There is no microcode or OS-level shortcut for this class; budget it as a fleet-wide maintenance campaign, not a patch.

References