CVE-2023-34320: Arm Cortex-a77 Firmware
Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.
Cortex-A77 cores (r0p0 and r1p0) are affected by erratum 1508412 where software, under certain circumstances, could deadlock a core due to the execution of either a load to device or non-cacheable memory, and either a store exclusive or register read of the Physical Address Register (PAR_EL1) in close proximity.
Affected products
Published 2023-12-08. Last modified 2026-06-17.