CVE-2021-29414

STMicroelectronics STM32L4 devices through 2021-03-29 have incorrect physical access control.

CVE-2020-27212

STMicroelectronics STM32L4 devices through 2020-10-19 have incorrect access control. The flash read-out protection (RDP) can be degraded from RDP level 2 (no access via debug interface) to level 1 (limited access via debug interface) by injecting a fault during the boot phase.