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Thinkpad T14s Gen 3 FirmwareOperating system · Lenovo

CVE-2022-48183

MEDIUM · 6.8 CVSS v3.1 Published 2023-10-09
Fix available
A fix is available. Upgrade to 1.30 / 1.35 or later.
See remediation →
73/100
Remediation priority · Elevated
No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A vulnerability was reported in ThinkPad T14s Gen 3 and X13 Gen3 that could cause the BIOS tamper detection mechanism to not trigger under specific circumstances which could allow unauthorized access.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

A vulnerability in Lenovo ThinkPad T14s Gen 3 and X13 Gen 3 laptops allows the BIOS tamper detection mechanism to fail to trigger under specific conditions, potentially permitting unauthorized access to the system.

MitigationApply the Lenovo BIOS/firmware update for the affected models once available. Until then, monitor physical access to affected devices and consider additional physical security controls.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Thinkpad T14s Gen 3 FirmwareOperating system
Affected:< 1.30< 1.35
Thinkpad X13 Gen 3 FirmwareOperating system
Affected:< 1.30< 1.35

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Physical
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify the ThinkPad model
    Run 'systeminfo' or check system properties to confirm the model is ThinkPad T14s Gen 3 or ThinkPad X13 Gen 3
    Affected if Model is not T14s Gen 3 or X13 Gen 3, then not affected by this CVE
  2. Check the installed BIOS/firmware version
    Run 'wmic bios get smbiosbiosversion' from command prompt, or check in BIOS setup under 'Information' or 'BIOS Version'
    Affected if Version cannot be determined or is not visible in BIOS settings
  3. Compare firmware version against affected ranges
    Compare the installed version number to the affected ranges: ThinkPad T14s Gen 3 firmware versions < 1.30 or < 1.35, and ThinkPad X13 Gen 3 firmware versions < 1.30 or < 1.35
    Affected if Installed version is at or above 1.35 (or the appropriate fixed version for the specific model), then likely not affected
  4. Verify tamper detection feature status
    Access BIOS setup (press Enter at startup), navigate to Security or Boot settings, and look for 'Tamper Detection' or 'BIOS Tamper Detection' setting
    Affected if Tamper detection is disabled or not available in BIOS, making the detection mechanism inapplicable
  5. Inspect BIOS security logs
    Enter BIOS setup and check 'Security Log' or 'Event Log' for tamper-related events, or use Lenovo Vantage/System Update utility to view BIOS history
    Affected if No tamper events logged despite expected detection activity, or logs indicate tamper detection failures

System is affected if it is a ThinkPad T14s Gen 3 or X13 Gen 3 with BIOS/firmware version below 1.35 (or 1.30 for certain branches) and tamper detection is configured but failing to trigger as expected.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 1.30 / 1.35 or later
Fixed in 1.301.35
Interim mitigation

Apply the Lenovo BIOS/firmware update for the affected models once available. Until then, monitor physical access to affected devices and consider additional physical security controls.

Recommended fix High confidence

ThinkPad T14s Gen 3: BIOS firmware version 1.30 (Intel) / 1.35 (AMD) or later; ThinkPad X13 Gen 3: BIOS firmware version 1.30 (Intel) / 1.35 (AMD) or later

  1. Identify your ThinkPad model number and processor type (Intel or AMD) - this determines which firmware version you need
  2. Navigate to Lenovo's support website (support.lenovo.com) and search for your specific ThinkPad model (T14s Gen 3 or X13 Gen 3)
  3. Locate the BIOS/UEFI firmware update section for your model
  4. Download the appropriate BIOS update version 1.30 (for Intel variants) or version 1.35 (for AMD variants) or later
  5. Review the update instructions carefully before proceeding
  6. Run the BIOS update utility as administrator, ensuring the laptop is plugged into power
  7. Allow the update process to complete fully - do not interrupt or power off the device during the update
  8. After the update completes, restart the system and verify the BIOS version has been updated
Caveat BIOS updates carry inherent risk if interrupted; ensure stable power and do not interrupt the flashing process; backup important data before proceeding

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Thinkpad T14s Gen 3 Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2022-48183 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data