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Aptio V CVE-2025-33045

HIGH
Write-what-where Condition (CWE-123)
2025-09-09 biossecurity@ami.com
8.2
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V15 - Secure Coding and Architecture Write-what-where prevention
Impact

CVSS score of 8.2 (HIGH). Attack characteristics: local attack vector, low complexity, high privileges required, no user interaction not required. EPSS exploitation probability: 0.02%.

Exploit ScenarioDerived

Successful exploitation could compromise the high-severity affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 28, 2026

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. Rated high severity (CVSS 8.2), this vulnerability is low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-123. 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 products include: Ami Aptio V.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 8.2 HIGH
AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

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.

Executive ViewAI

Why It Matters

Organizations using APTIOV face notable risk from CVE-2025-33045 rated CVSS 8.2. Successful exploitation could significantly impact the confidentiality, integrity, or availability of affected systems. Organizations should apply vendor updates when available and consider compensating controls in the interim.

Business Impact: High
Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls to limit exposure; (2) Enable enhanced monitoring and alerting; (3) Apply principle of least privilege.

Threat Intelligence Overview

EPSS Score
0.0%
Top 96% exploitable
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.0%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact
High

Priority Score

41
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +41
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)CVE.org

cpe:2.3:o:ami:aptio_v:*:*:*:*:*:*:*:*
CVE-2022-40250 HIGH POC
8.8 Sep 20

An attacker can exploit this vulnerability to elevate privileges from ring 0 to ring -2, execute arbitrary code in Syste

CVE-2022-40262 HIGH POC
8.2 Sep 20

A potential attacker can execute an arbitrary code at the time of the PEI phase and influence the subsequent boot stages

CVE-2022-40261 HIGH POC
8.2 Sep 20

An attacker can exploit this vulnerability to elevate privileges from ring 0 to ring -2, execute arbitrary code in Syste

CVE-2022-26873 HIGH POC
8.2 Sep 20

A potential attacker can execute an arbitrary code at the time of the PEI phase and influence the subsequent boot stages

CVE-2024-42442 HIGH
8.8 Nov 12

APTIOV contains a vulnerability in the BIOS where a user or attacker may cause an improper restriction of operations wit

CVE-2024-33657 HIGH
7.8 Aug 21

This SMM vulnerability affects certain modules, allowing privileged attackers to execute arbitrary code, manipulate stac

CVE-2024-33656 HIGH
7.8 Aug 21

The DXE module SmmComputrace contains a vulnerability that allows local attackers to leak stack or global memory. Rated

CVE-2023-39539 HIGH
7.8 Dec 06

AMI AptioV contains a vulnerability in BIOS where a User may cause an unrestricted upload of a PNG Logo file with danger

CVE-2023-39538 HIGH
7.8 Dec 06

AMI AptioV contains a vulnerability in BIOS where a User may cause an unrestricted upload of a BMP Logo file with danger

CVE-2023-39537 HIGH
7.8 Nov 14

AMI AptioV contains a vulnerability in BIOS where an Attacker may use an improper input validation via the local network

CVE-2023-39536 HIGH
7.8 Nov 14

AMI AptioV contains a vulnerability in BIOS where an Attacker may use an improper input validation via the local network

CVE-2023-39535 HIGH
7.8 Nov 14

AMI AptioV contains a vulnerability in BIOS where an Attacker may use an improper input validation via the local network

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