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Aptio V CVE-2025-33043

MEDIUM
Improper Input Validation (CWE-20)
2025-05-29 biossecurity@ami.com
5.8
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V2 - Validation and Business Logic Input validation, allowlisting
Impact

CVSS score of 5.8 (MEDIUM). Attack characteristics: local attack vector, high complexity, high privileges required, user interaction required. EPSS exploitation probability: 0.05%.

Exploit ScenarioDerived

Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 28, 2026

APTIOV contains a vulnerability in BIOS where an attacker may cause an Improper Input Validation locally. Rated medium severity (CVSS 5.8). 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-20. APTIOV contains a vulnerability in BIOS where an attacker may cause an Improper Input Validation locally. Successful exploitation of this vulnerability can potentially impact of integrity. 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 5.8 MEDIUM
AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

DescriptionCVE.org

APTIOV contains a vulnerability in BIOS where an attacker may cause an Improper Input Validation locally. Successful exploitation of this vulnerability can potentially impact of integrity.

Executive ViewAI

Why It Matters

Organizations using APTIOV should be aware of moderate risk from CVE-2025-33043, a input validation vulnerability rated CVSS 5.8. Exploitation could compromise the security of affected deployments. Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: Low
Compensating Controls

Apply vendor patch. If patching is delayed: deploy WAF rules, restrict network access, enable logging.

Threat Intelligence Overview

EPSS Score
0.1%
Top 84% exploitable

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 MEDIUM
CISA KEV No
Public POC No
EPSS 0.1%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
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
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact
Low

Priority Score

29
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +29
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-2025-33045 HIGH
8.2 Sep 09

APTIOV contains vulnerabilities in the BIOS where a privileged user may cause “Write-what-where Condition” and “Exposure

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

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