CVE-2022-4574

MEDIUM
6.7
CVSS Score
Published: October 30, 2023 at 02:36 PM UTC
Updated: June 17, 2026 at 05:21 AM UTC
110 products affected across 1 vendorThinkPadThinkPad T14 Gen 2 FirmwareThinkPad L14 Firmware

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Severity
MEDIUM6.7
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

An SMI handler input validation vulnerability in the BIOS of some ThinkPad models could allow an attacker with local access and elevated privileges to execute arbitrary code.

Affected

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

All versions
v < 1.20
Affected range stops below 1.20, so it looks safe — our inference, not a vendor statement
lenovo-thinkpad-l14 (same device)
All versions
lenovo-thinkpad-l14-gen-2 (same device)
v < 1.20
Affected range stops below 1.20, so it looks safe — our inference, not a vendor statement
lenovo-thinkpad-l15 (same device)
All versions
lenovo-thinkpad-l15-gen-2 (same device)
v < 1.27
Affected range stops below 1.27, so it looks safe — our inference, not a vendor statement
lenovo-thinkpad-p1-gen-3 (same device)
lenovo-thinkpad-p1-gen-4 (same device)
v < 1.16
Affected range stops below 1.16, so it looks safe — our inference, not a vendor statement
lenovo-thinkpad-p1-gen-5 (same device)
v < 1.28
Affected range stops below 1.28, so it looks safe — our inference, not a vendor statement
lenovo-thinkpad-p14s-gen-1 (same device)
All versions
lenovo-thinkpad-p14s-gen-2 (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

6.7MEDIUMlenovo
Attack Vector
LOCAL
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20NVD-CWE-noinfo

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