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Ideacentre C5 14imb05 FirmwareOperating system · Lenovo

CVE-2022-40137

MEDIUM · 6.7 CVSS v3.1 Published 2023-01-30
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
69/100
Remediation priority · Elevated
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 buffer overflow in the WMI SMI Handler in some Lenovo models may allow an attacker with local access and elevated privileges to execute arbitrary code.

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 buffer overflow vulnerability exists in the WMI SMI Handler on certain Lenovo systems. The flaw allows a local attacker with elevated privileges to achieve arbitrary code execution by overflowing a buffer in the Windows Management Instrumentation System Management Interface handler.

MitigationApply the appropriate Lenovo firmware/security update for the affected model. Verify that only trusted software interacts with WMI interfaces and restrict local privileged access.

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
Ideacentre C5 14imb05 FirmwareOperating system
Affected:= o4hkt3aa
Ideacentre E96z FirmwareOperating system
Affected:= m26kt24a
Ideacentre 3 07iab7 FirmwareOperating system
Affected:= m49kt1da
Ideacentre 3 07imb05 FirmwareOperating system
Affected:= m2vkt1fa
Ideacentre 5 14iab7 FirmwareOperating system
Affected:= m42kt40a
Ideacentre 5 14acn6 FirmwareOperating system
Affected:= o5ekt23a
Ideacentre 5 14imb05 FirmwareOperating system
Affected:= o4hkt3aa
Ideacentre 5 14iob6 FirmwareOperating system
Affected:= m3gkt38a

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
Local
Complexity
Low
Privileges
High
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:H/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 system model
    Open a command prompt and run: wmic csproduct get name. Or check the physical system label or BIOS information.
    Affected if The model is NOT one of these: Ideacentre C5 14imb05, Ideacentre E96z, Ideacentre 3 07iab7, Ideacentre 3 07imb05, Ideacentre 5 14iab7, Ideacentre 5 14acn6, Ideacentre 5 14imb05, or Ideacentre 5 14iob6. If your model is not in this list, you are NOT affected.
  2. Check the firmware version
    Open a command prompt and run: wmic bios get version. Or boot into BIOS/UEFI and check the firmware version information displayed.
    Affected if The firmware version does NOT match one of these: o4hkt3aa, m26kt24a, m49kt1da, m2vkt1fa, m42kt40a, o5ekt23a, or m3gkt38a. If your firmware version does not match any of these exact values, you are NOT affected.
  3. Verify WMI handler configuration
    This vulnerability exists in the WMI SMI Handler at the firmware level. There is no user-accessible configuration to check. The vulnerability is triggered when the WMI System Management Interface handler processes certain SMI (System Management Interface) calls.
    Affected if This is a firmware-level flaw. If your model and firmware version match the affected list, the vulnerable handler is present regardless of any Windows-level WMI settings.

You are affected only if your system is a Lenovo Ideacentre model from the affected list AND your firmware version exactly matches one of the specific versions listed (o4hkt3aa, m26kt24a, m49kt1da, m2vkt1fa, m42kt40a, o5ekt23a, or m3gkt38a). Both conditions must be true.

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
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply the appropriate Lenovo firmware/security update for the affected model. Verify that only trusted software interacts with WMI interfaces and restrict local privileged access.

Recommended fix Moderate confidence

Latest BIOS/firmware version available on Lenovo support for the specific Ideacentre model (versions after the vulnerable firmware releases: o4hkt3aa, m26kt24a, m49kt1da, m2vkt1fa, m42kt40a, o5ekt23a, m3gkt38a)

  1. 1. Visit Lenovo support website (support.lenovo.com) and navigate to the driver/firmware download section for your specific Ideacentre model.
  2. 2. Identify your current firmware version by running 'wmic bios get smbiosbiosversion' or checking the system information.
  3. 3. Search for firmware updates released after the CVE publication date (2022) for your specific model number.
  4. 4. Download the latest BIOS/firmware update package from Lenovo's official support site.
  5. 5. Apply the firmware update following Lenovo's instructions (typically requires running the update utility and rebooting).
  6. 6. Verify the firmware has been updated to a version that includes the security fix.
Caveat Firmware updates carry a risk of rendering the system unusable if interrupted; ensure stable power and follow update instructions precisely

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

Fix this in Ideacentre C5 14imb05 Firmware Scoped from the published advisory
  • Consultation3.0 h
  • Implementation2.0 h
  • Testing3.0 h
  • Review / QA2.0 h
10.0 hours of engineering $1,770
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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-2022-40137 in production — separate from our analysis above.

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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