privileged users may cause the “Heap-based Buffer Overflow” 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 write hits unmapped memory. It could also impact Confidentiality,
Integrity, and Availability.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| AMI | AptioV | unaffected |
|
No data.
No data.
No data.
Project Subscriptions
No data.
No advisories yet.
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Tue, 10 Nov 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | AMI APTIOV contains vulnerabilities in BIOS where privileged users may cause the “Heap-based Buffer Overflow” 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 write hits unmapped memory. It could also impact Confidentiality, Integrity, and Availability. | |
| Title | Heap Overflow in SmiVariable SMM Handler | |
| References |
| |
| Metrics |
cvssV4_0
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Projects
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MITRE
Status: PUBLISHED
Assigner: AMI
Published:
Updated: 2026-11-10T16:23:12.686Z
Reserved: 2026-07-24T21:31:28.218Z
Link: CVE-2026-66335
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-11-10T17:17:46.873
Modified: 2026-11-10T17:17:46.873
Link: CVE-2026-66335
Redhat
No data.
OpenCVE Enrichment
No data.
No weakness.