CVE-2026-66332 · Vendor
NO FIX YET
AMI Aptio BIOS firmware has an out-of-bounds read that a privileged local user can trigger. Successful exploitation may crash firmware update processing or cause a failed update, and could also expose or disrupt data.
first public Nov 10, 2026 · 1 source
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Machines running affected AMI Aptio BIOS firmware, where the attacker already has privileged local access. The sources do not list affected firmware versions or board vendors, so the exposure cannot be narrowed further from them.
Not affected if no-local-privileged-access
Who cares ami-aptio, bios, firmware, linux, windows
Unknown from the sources.
No fix yet, per the sources.
AMI APTIOV contains a vulnerability in BIOS where a privileged user may cause the “Out-of-Bound Read” by local access. Successful exploitation of this vulnerability may lead to a denial of service during firmware update processing, such as a crash or failed update if the out-of-bounds read hits unmapped memory. It could also potentially impact Confidentiality and Availability.
This page as .md · .json · CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.
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