CVE-2026-66333
OFBD SMM Read Validation Issues
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
AMI APTIOV contains vulnerabilities in BIOS where privileged users may cause the “Out-of-Bounds 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 impact Confidentiality, and Availability.
| CWE | CWE-125 |
| Vendor | ami |
| Product | aptiov |
| Published | Nov 10, 2026 |
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Affected Versions
AMI / AptioV
AptioV_5.0 < AptioV_5.046
References
Credits
Zhenyu Liu Huafeng Wang