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CVE-2024-33659

BiosGuard Buffer Overflow and TOCTOU Vulnerability

Published: Feb 11, 2025Updated: Oct 2, 2025 Sources: CVE List NVDCWE-20
NVD MITRE
8.8CVSSHIGH
EPSS Score
0.2%
Top 95.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

AMI APTIOV contains a vulnerability in BIOS where an attacker may cause an Improper Input Validation by a local attacker. Successful exploitation of these vulnerabilities may lead to overwriting arbitrary memory and execute arbitrary code at SMM level, also impacting Confidentiality, Integrity, and Availability.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:CC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-20

Affected Products

AptioVAMIHardware Firmware
aptio vamiHardware Firmware
amicommercialUSHardware Firmwareaka ami (american megatrends), american megatrends inc, american megatrends

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
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References

https://9443417.fs1.hubspotusercontent-na1.net/hubfs/9443417/Security%20Advisories/2025/AMI-SA-2025002.pdf
9443417.fs1.hubspotusercontent-na1.net

Timeline

Published
Feb 11, 2025
Last Updated
Oct 2, 2025

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