CVE-2025-33045: Legacy Serial Redirection SMRAM Vulnerabilities

Published Sep 9, 2025
·
Updated

APTIOV contains vulnerabilities in the BIOS where a privileged user may cause “Write-what-where Condition” and “Exposure of Sensitive Information to an Unauthorized Actor” through local access. The successful exploitation of these vulnerabilities can lead to information disclosure, arbitrary data writing, and impact Confidentiality, Integrity, and Availability.

Affected Software

1 affected component
AMI Aptio V>=5.0<5.040

Event History

Sep 9, 2025
CVE Published
via MITRE·02:00 PM
Data Sourced
via MITRE·02:00 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·02:15 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-33045?

The severity of CVE-2025-33045 is high due to the potential for information disclosure and exploitation by privileged users.

2

How do I fix CVE-2025-33045?

To fix CVE-2025-33045, update the AMI Aptio V BIOS to the latest version that mitigates these vulnerabilities.

3

What types of vulnerabilities are present in CVE-2025-33045?

CVE-2025-33045 includes a 'Write-what-where Condition' and 'Exposure of Sensitive Information' through local access.

4

Who can exploit CVE-2025-33045?

CVE-2025-33045 can be exploited by a privileged user with local access to the system.

5

What are the potential impacts of CVE-2025-33045?

The exploitation of CVE-2025-33045 can lead to significant information disclosure and compromise of sensitive data.

Contact

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