{"id":"CVE-2026-0461","title":"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 memo…","summary":"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 memo…","severity":"high","cvss":7.5,"cvssVector":"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","cwe":["CWE-787"],"vendor":"AMD","product":"Zynq™ UltraScale+ MPSoCs","affected":["zynq_ultrascale+_mpsocs (all versions)","zynq_ultrascale+_rfsocs (all versions)","kria_soms (all versions)"],"published":"2026-10-05","updated":"2026-10-05","sourceUpdated":"2026-10-05T22:16:55.280","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-0461","references":[{"url":"https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-8029.html","label":"psirt@amd.com"}],"tags":["nvd","cve.org"],"cvssSource":"cna","ingestedAt":"2026-10-05T22:35:24.733Z","slug":"CVE-2026-0461","body":"## Overview\n\nInsufficient 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}