CVE-2022-3728

Unauthorized access via failed BIOS tamper detection

Published Oct 9, 2023 · Updated Sep 19, 2024

Improper physical access control in Lenovo ThinkPad T14s Gen 3 and X13 Gen 3 BIOS before 1.30 allows attackers to gain unauthorized access. Under specific undisclosed circumstances, the BIOS tamper-detection mechanism fails to trigger, leaving the expected hardware-security response inactive. Physical proximity is required; Lenovo has not published the triggering circumstances or a more specific account of the resulting unauthorized access.

CVSS severity6.1
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper physical access control in Lenovo ThinkPad T14s Gen 3 and X13 Gen 3 BIOS before 1.30 allows attackers to gain unauthorized access. Under specific undisclosed circumstances, the BIOS tamper-detection mechanism fails to trigger, leaving the expected hardware-security response inactive. Physical proximity is required; Lenovo has not published the triggering circumstances or a more specific account of the resulting unauthorized access.

The record

CVE
CVE-2022-3728
Published
Oct 9, 2023
Updated
Sep 19, 2024
Vendor
Lenovo
Product
ThinkPad T14s Gen 3 BIOS
Classifications
CWE-1263
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 9, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 19, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected version<1.30 (R22ET60W)

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Lenovo · ThinkPad T14s Gen 3 BIOS<1.30 (R22ET60W)
Lenovo · ThinkPad X13 Gen 3 BIOS<1.30 (R22ET60W)

Published CVSS scores

6.8NIST NVDCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.1Lenovo Group Ltd.CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

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)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1263Improper Physical Access Control

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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