CVE-2025-33045

Legacy Serial Redirection SMRAM Vulnerabilities

Published Sep 9, 2025 CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed
Description
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.

Analysis

No analysis available yet

Remediation

No remediation available yet

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-27256 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.
History
Type Values Removed Values Added
CPEs cpe:2.3:o:ami:aptio_v:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Ami
Ami aptio V
Vendors & Products Ami
Ami aptio V
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Legacy Serial Redirection SMRAM Vulnerabilities
Weaknesses CWE-123
CWE-200
References
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H'}

Weaknesses
  • CWE-123

    Write-what-where Condition

  • CWE-200

    Exposure of Sensitive Information to an Unauthorized Actor

Sources

Status
PUBLISHED
Assigner
AMI
Published
Updated
Sep 9, 2025, 2:15 PM
Reserved
Apr 15, 2025, 4:15 PM
Status
Analyzed
Published
Sep 9, 2025, 2:15 PM
Modified
Jun 17, 2026, 9:13 AM