CVE-2026-33197 PUBLISHED

BDS Module Bypass Secure Boot Advisory

Assigner: AMI
Reserved: 17.03.2026 Published: 08.09.2026 Updated: 08.09.2026

AMI APTIOV contains a vulnerability in BIOS where a privileged user may cause the “Incomplete List of Disallowed Inputs” by local access. Successful exploitation of this vulnerability may lead to arbitrary code execution and impact system Confidentiality, Integrity, and Availability.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CVSS Score: 8.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Local	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	Present	Availability	High	Availability	High
Privileges Required	High
User Interaction	None

CVSS 4.0

Product Status

Vendor	AMI
Product	AptioV
Versions	Default: unaffected affected from AptioV_5.0 to AptioV_5.044 (excl.)

References

https://go.ami.com/hubfs/Security%20Advisories/2026/AMI-SA-2026001.pdf

Problem Types

CWE-184: Incomplete List of Disallowed Inputs CWE