CVE-2021-1116
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 · uneditedNVIDIA GPU Display Driver for Windows contains a vulnerability in the kernel mode layer (nvlddmkm.sys), where a NULL pointer dereference in the kernel, created within user mode code, may lead to a denial of service in the form of a system crash.
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 · high confidenceNVIDIA GPU Display Driver for Windows contains a NULL pointer dereference vulnerability in the kernel mode layer (nvlddmkm.sys). User mode code can trigger the kernel to dereference a NULL pointer, causing a system crash (Blue Screen of Death) and resulting in denial of service.
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>= 390, < 392.68>= 460, < 463.15>= 470, < 472.39>= 490, < 496.49CVSS 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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Identify NVIDIA GPU hardware in the systemOpen Device Manager, expand 'Display adapters', and look for any NVIDIA GPU listed (e.g., NVIDIA GeForce GTX, Quadro, etc.)Affected if No NVIDIA GPU is present in the system - the vulnerability only applies if NVIDIA GPU hardware with the affected driver is installed
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Check installed NVIDIA display driver version via Control PanelOpen NVIDIA Control Panel, click 'System Information' in the bottom-left corner, and note the 'Driver Version' field displayed in the windowAffected if The driver version shown falls within one of the affected ranges: 390 to 392.67, 460 to 463.14, 470 to 472.38, or 490 to 496.48
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Check nvlddmkm.sys file version directlyNavigate to C:\Windows\System32\drivers\, right-click nvlddmkm.sys, select Properties, go to the Details tab, and read the 'File version' valueAffected if The file version matches one of the affected version ranges listed above
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Compare against CVE-2021-1116 affected version rangesTake the driver version number found in step 2 or 3 and verify it is: 390 <= version < 392.68, OR 460 <= version < 463.15, OR 470 <= version < 472.39, OR 490 <= version < 496.49Affected if The installed version falls into any of these ranges - the system is vulnerable to the NULL pointer dereference that can cause a Blue Screen of Death
A system is affected if it has an NVIDIA GPU with a display driver version matching one of the four vulnerable ranges (390-392.67, 460-463.14, 470-472.38, or 490-496.48).
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.
dbcve · scoped392.68463.15472.39
Update the NVIDIA GPU display driver to a patched version that addresses this vulnerability. In enterprise environments, test driver compatibility before broad deployment.
Upgrade to driver version 392.68 (for 390 series), 463.15 (for 460 series), 472.39 (for 470 series), or 496.49 (for 490 series) or later
- 1. Identify your current NVIDIA GPU display driver version by opening NVIDIA Control Panel and checking 'System Information' or running 'nvidia-smi' in command prompt
- 2. Determine which version branch you are on (390, 460, 470, or 490 series)
- 3. Download the appropriate fixed driver version from NVIDIA's website or support portal: for 390.x series use 392.68 or later; for 460.x series use 463.15 or later; for 470.x series use 472.39 or later; for 490.x series use 496.49 or later
- 4. Uninstall the current NVIDIA display driver using Windows Device Manager or the NVIDIA uninstaller
- 5. Install the downloaded fixed version driver
- 6. Reboot the system to ensure the new driver loads properly
- 7. Verify the new driver version is installed correctly
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-1116 — 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-2021-1116 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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- 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
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