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Ideacentre C5 14imb05 FirmwareOperating system · Lenovo

CVE-2023-45078

MEDIUM · 6.7 CVSS v3.1 Published 2023-11-08
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 memory leakage vulnerability was reported in the DustFilterAlertSmm SMM driver that may allow a local attacker with elevated privileges to write to NVRAM variables.

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 memory leakage vulnerability in the DustFilterAlertSmm SMM (System Management Mode) driver could allow a local attacker with elevated privileges to leak memory and write to NVRAM variables, potentially persisting malicious configuration changes at the firmware level.

MitigationApply vendor-supplied BIOS/firmware update containing the patched DustFilterAlertSmm driver to remediate the memory leak and prevent unauthorized NVRAM writes.

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:< o4hkt3ca
Ideacentre 3 07ada05 FirmwareOperating system
Affected:< o4fkt39a
Ideacentre 3 07imb05 FirmwareOperating system
Affected:< m2vkt21a
Ideacentre G5 14imb05 FirmwareOperating system
Affected:< o4hkt3ca
Ideacentre 5 14iob6 FirmwareOperating system
Affected:< m3gkt3da
Ideacentre Creator 5 14iob6 FirmwareOperating system
Affected:< m3gkt3da
Ideacentre G5 14amr05 FirmwareOperating system
Affected:< o4zkt2ba
Ideacentre Gaming 5 14iob6 FirmwareOperating system
Affected:< m3gkt3da

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 Ideacentre model
    Check the system model number on the physical device or via system information (e.g., 'wmic computersystem get model' or 'systeminfo' on Windows)
    Affected if Model is one of: Ideacentre C5 14imb05, Ideacentre 3 07ada05, Ideacentre 3 07imb05, Ideacentre G5 14imb05, Ideacentre 5 14iob6, Ideacentre Creator 5 14iob6, Ideacentre G5 14amr05, or Ideacentre Gaming 5 14iob6
  2. Check the BIOS/firmware version
    Access the UEFI/BIOS setup (press F1 or Delete at boot) and locate the BIOS Version/Build information, or use a tool like 'wmic bios get smbiosbiosversion' on Windows or 'dmidecode -s bios-version' on Linux
    Affected if Firmware version is below the threshold for the specific model (C5 14imb05/G5 14imb05: < o4hkt3ca; 3 07ada05: < o4fkt39a; 3 07imb05: < m2vkt21a; 5 14iob6/Creator 5 14iob6/Gaming 5 14iob6: < m3gkt3da; G5 14amr05: < o4zkt2ba)
  3. Verify the DustFilterAlertSmm driver presence
    This SMM driver is embedded in the firmware and not directly visible from the operating system. Check vendor firmware release notes or use the vendor's BIOS update utility which typically lists included drivers/components
    Affected if The firmware contains the DustFilterAlertSmm SMM driver (this driver exists in all affected firmware versions before the fix)

The system is affected if it is one of the listed Ideacentre models AND the installed firmware version is lower than the version threshold for that model, meaning the patched DustFilterAlertSmm driver has not been applied.

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 vendor-supplied BIOS/firmware update containing the patched DustFilterAlertSmm driver to remediate the memory leak and prevent unauthorized NVRAM writes.

Recommended fix High confidence

Upgrade to firmware version o4hkt3ca (for C5 14imb05, G5 14imb05), o4fkt39a (for 3 07ada05), m2vkt21a (for 3 07imb05), m3gkt3da (for 5 14iob6, Creator 5 14iob6, Gaming 5 14iob6), or o4zkt2ba (for G5 14amr05)

  1. 1. Identify the exact Ideacentre model number from the affected list (C5 14imb05, 3 07ada05, 3 07imb05, G5 14imb05, 5 14iob6, Creator 5 14iob6, G5 14amr05, or Gaming 5 14iob6)
  2. 2. Visit support.lenovo.com and navigate to the Drivers & Downloads section for your specific model
  3. 3. Locate the BIOS/firmware update corresponding to the fixed version number for your model (o4hkt3ca, o4fkt39a, m2vkt21a, m3gkt3da, or o4zkt2ba)
  4. 4. Download the firmware update package
  5. 5. Follow Lenovo's firmware update instructions, which typically require running the update utility from Windows or creating a bootable USB update disk
  6. 6. Ensure the system remains powered on during the entire firmware update process
Caveat Firmware updates carry a small risk of system unbootability if interrupted; ensure stable power and do not interrupt the update process

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

Fix this in Ideacentre C5 14imb05 Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation2.0 h
  • Testing8.0 h
  • Review / QA4.0 h
18.0 hours of engineering $3,080
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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-2023-45078 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