CVE-2026-0461

State: Published
Severity: 7.5 High
Published: Oct 5, 2026
Updated: Oct 6, 2026
Reserved: Dec 6, 2025

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.

Scores

CVSS	Score	Vector	Source
4.0	7.5 High	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	AMD

Weaknesses

CWE-787 Out-of-bounds Write

Affected Products

Product	Versions
Zynq™ UltraScale+ MPSoCsAMD	2026.1Not affected
Zynq™ UltraScale+ RFSoCsAMD	2026.1Not affected
Kria SOMsAMD	2026.1Not affected

References

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

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