CVE-2025-9548
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 · uneditedA potential null pointer dereference vulnerability was reported in the Lenovo Power Management Driver that could allow a local authenticated user to cause a Windows blue screen error.
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 confidenceA null pointer dereference vulnerability exists in the Lenovo Power Management Driver that can be triggered by a local authenticated user, causing a Windows blue screen (BSOD/denial of service). This is a kernel-mode driver issue where pointer validation is insufficient before dereferencing.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 checksWork through these to decide whether this CVE applies to you.
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Confirm Lenovo Power Management Driver is installedOpen Device Manager, expand 'System devices', and look for Lenovo Power Management Driver or check Programs and Features for Lenovo utilities. Alternatively, run 'driverquery /v | findstr -i lenovo' in Command Prompt.Affected if The driver is listed in Device Manager or driverquery output
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Identify the driver versionIn Device Manager, right-click the Lenovo Power Management Driver, select Properties, then the Driver tab to view the driver version. Alternatively, use 'powershell Get-WmiObject Win32_PnPSignedDriver | Where-Object {$_.DeviceName -like "*Lenovo*Power*Management*"} | Select-Object DriverVersion, DeviceName'Affected if Version cannot be determined or is within an unpatched version range
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Verify the driver is currently loadedOpen Services (services.msc) and look for any Lenovo power management related services, or run 'sc query type= driver' and search for Lenovo power management entries.Affected if The driver service is running and active
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Check for BSOD crash dumpsNavigate to C:\Windows\Minidump or use Event Viewer (Application and Services Logs > Windows > BugCheck) to look for recent crash events. Open .dmp files with WinDbg or similar to analyze the crash reason.Affected if Recent crash dumps reference the Lenovo Power Management Driver (lmamd64.sys or similar) as the faulting module
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Identify authenticated local user accessReview system audit logs in Event Viewer under Security logs for local user logon events, and check account management for the presence of non-admin or untrusted local accounts.Affected if Multiple authenticated local users exist or untrusted accounts have access to the system
If the Lenovo Power Management Driver is installed, loaded, and a local authenticated user can access the system, the environment is potentially affected by this null pointer dereference vulnerability.
Generated from the published advisory. Verify against your own configuration.
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.
From vendor dataApply the Lenovo driver update when available. Until then, limit local access to trusted authenticated users only and monitor for crash reports indicative of exploitation.
- Consultation1.0 h
- Implementation2.0 h
- Testing3.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-9548 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-9548 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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