7.5
High
CVE-2026-0461 Insufficient boundary validation in the USB boot mode implementation of AMD Zynq™ UltraScale+ MPSoC and RFSoC devices…
Description
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 products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Zynq™ UltraScale+ MPSoCs 2026.1 | earliest → < 2026.1 | 2026.1 |
| Zynq™ UltraScale+ RFSoCs 2026.1 | earliest → < 2026.1 | 2026.1 |
| Kria SOMs 2026.1 | earliest → < 2026.1 | 2026.1 |