MEDIUMCVSS v4 4.8Vulnerability

CVE-2026-66333

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.

Properties

Severity
MEDIUM
Nvd fetched at
2026-11-10T23:33:48.924589+00:00
Cvss severity
MEDIUM
Cvss score
4.8
Retrieved at
2026-11-10T23:34:23+00:00
Score
4.8
Cvss version
4.0
Last source
NVD
Cve id
CVE-2026-66333
Cvss vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/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
First seen by Signal
2026-11-10T19:28:56+00:00
Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/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
Published at
2026-11-10T17:17:46.603
Last modified
2026-11-10T17:17:46.603

Related Entities (1)

HAS_WEAKNESS (1)

→[Weakness]Out-of-bounds Read

Related research

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CVE-2026-66333 (CVSS v4 4.8) — Ninja Signal Threat Intelligence | Ninja Signal