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CVE-2025-4424

SetupAutomationSmm : Arbitrary calls to SmmSetVariable with unsanitised arguments in SMI handler

MEDIUM
6
CVSS Score
Published: July 30, 2025 at 12:43 AM UTC
Updated: June 17, 2026 at 09:33 AM UTC
1 product affected across 1 vendorInsydeH2O

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Severity
MEDIUM6
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

The vulnerability was identified in the code developed specifically for Lenovo. Please visit "Lenovo Product Security Advisories and Announcements" webpage for more information about the vulnerability.  https://support.lenovo.com/us/en/product_security/home

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

InsydeH2O· Insyde
60%
Feature developed for Lenovo ≤ v < L05.05.40.011803.172079Feature developed for Lenovo
Affected range stops below L05.05.40.011803.172079, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Source: 8338d8cb-57f7-4252-abc0-96fd13e98d21
https://support.lenovo.com/us/en/product_security/home
Source: 8338d8cb-57f7-4252-abc0-96fd13e98d21
https://www.insyde.com/security-pledge/sa-2025007/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6MEDIUMInsyde
Attack Vector
LOCAL
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-20

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