CVE-2026-0461: CWE-787 Out-of-bounds Write in AMD Zynq™ UltraScale+ MPSoCs
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.
CVSS v4.0
Score 7.5high
Affected software
AMD
Zynq™ UltraScale+ MPSoCs
AMD
Zynq™ UltraScale+ RFSoCs
AMD
Kria SOMs
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- AMD
- Date Reserved
- 2025-12-06T15:11:19.042Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ac41b4d2cdf04f6563d8ecc
Added to database: 10/05/2026, 21:49:01 UTC
Last updated: 10/05/2026, 21:49:01 UTC
Views: 1
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