CVE-2026-0461 PUBLISHED

Assigner: AMD
Reserved: 06.12.2025 Published: 05.10.2026 Updated: 06.10.2026

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.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 7.5

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Local	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	Present	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	AMD
Product	Zynq™ UltraScale+ MPSoCs
Versions	Default: affected Version 2026.1 is unaffected

Vendor	AMD
Product	Zynq™ UltraScale+ RFSoCs
Versions	Default: affected Version 2026.1 is unaffected

Vendor	AMD
Product	Kria SOMs
Versions	Default: affected Version 2026.1 is unaffected

References

https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-8029.html

Problem Types

CWE-787 Out-of-bounds Write CWE