CVE-2025-4422

EfiSmiServices : EfiPcdProtocol, SMM memory corruption vulnerabilities in SMM module

HIGH

8.2

CVSS Score

Published: July 30, 2025 at 12:40 AM UTC

Updated: June 17, 2026 at 09:33 AM UTC

1 product affected across 1 vendorInsydeH2O

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Severity

HIGH8.2

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 automatableTotal impact

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

CVSS

8.2HIGHInsyde

Attack Vector: LOCAL
Complexity: LOW
Privileges: HIGH
User Interaction: NONE
Scope: CHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-787

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