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.
History

Tue, 06 Oct 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Amd
Amd kria Som
Amd zynq Ultrascale+
Vendors & Products Amd
Amd kria Som
Amd zynq Ultrascale+

Tue, 06 Oct 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 05 Oct 2026 22:45:00 +0000

Type Values Removed Values Added
Title USB Boot Mode Buffer Overflow in AMD Zynq UltraScale+ MPSoCs and RFSoCs

Mon, 05 Oct 2026 21:45:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-787
References
Metrics cvssV4_0

{'score': 7.5, '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: AMD

Published: 2026-10-05T21:38:01.104Z

Updated: 2026-10-06T13:49:03.497Z

Reserved: 2025-12-06T15:11:19.042Z

Link: CVE-2026-0461

cve-icon Vulnrichment

Updated: 2026-10-06T13:48:59.420Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-05T22:16:55.280

Modified: 2026-10-06T16:00:36.547

Link: CVE-2026-0461

cve-icon Redhat

No data.