CVE-2022-3745

Privileged SMI data disclosure through undisclosed flaw

Published Aug 23, 2023 · Updated Oct 1, 2024

Information disclosure in LCFC BIOS on affected Lenovo consumer notebooks allows local users with elevated privileges to view SMI data. The vendor states that the flaw exposes data entering and returning from System Management Interrupt operations, but it has not disclosed the affected handler or incorrect operation. Exploitation requires local access and elevated privileges, and the documented consequence is limited to confidentiality loss with no reported modification or service interruption.

CVSS severity4.4
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in LCFC BIOS on affected Lenovo consumer notebooks allows local users with elevated privileges to view SMI data. The vendor states that the flaw exposes data entering and returning from System Management Interrupt operations, but it has not disclosed the affected handler or incorrect operation. Exploitation requires local access and elevated privileges, and the documented consequence is limited to confidentiality loss with no reported modification or service interruption.

The record

CVE
CVE-2022-3745
Published
Aug 23, 2023
Updated
Oct 1, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-200, T1005
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Aug 23, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 1, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.4Lenovo Group Ltd.CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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