CVE-2026-0461: High severity AMD Zynq UltraScale+ MPSoC vulnerability
Insufficient boundary validation in the USB boot mode implementation of AMD Zynq™ UltraScale+ MPSoC and RFSoC devices could allow unbounded Device Firmware Upgrade (DFU) download requests to overflow the DDR receive buffer into FSBL memory, potentially resulting in unauthorized code execution during the boot process. This issue could impact the confidentiality, integrity, or availability of affected system.
Affected Software
Event History
Frequently Asked Questions
Which systems should be prioritized for review?
Review systems built on AMD Zynq UltraScale+ MPSoC or AMD RFSoC devices that use USB boot mode. The issue is in the USB boot-mode implementation and affects the boot process.
What access does an attacker need?
The CVSS vector indicates local attack access is required. It indicates no privileges or user interaction are required, although additional attack requirements are present.