CVE-2021-1082
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 vGPU software contains a vulnerability in the Virtual GPU Manager (vGPU plugin), in which an input length is not validated, which may lead to information disclosure, tampering of data, or denial of service. vGPU version 12.x (prior to 12.2), version 11.x (prior to 11.4) and version 8.x (prior to 8.7)
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 vGPU software contains an input validation vulnerability in the Virtual GPU Manager's vGPU plugin where input length is not properly validated. This could allow a malicious or malformed input to cause information disclosure, data tampering, or denial of service conditions.
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>= 8.0, < 8.7>= 11.0, < 11.4>= 12.0, < 12.2CVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/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 checksWork through these to decide whether this CVE applies to you.
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Identify if NVIDIA vGPU Manager is installedOn the hypervisor host, check for the presence of NVIDIA vGPU software packages or VIBs. On ESXi this could be via 'esxcli software vib list | grep -i nvidia'. On other hypervisors, check for installed NVIDIA vGPU components.Affected if No NVIDIA vGPU software is found, the vulnerability does not apply.
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Determine the Virtual GPU Manager versionRetrieve the installed version of the NVIDIA Virtual GPU Manager. On ESXi this can be done via 'esxcli software vib list' and look for the NVIDIA vGPU Manager VIB, or check the NVIDIA SMX device driver version.Affected if Unable to determine version; proceed to check if vGPU plugin is in use.
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Verify vGPU plugin is configured and in useCheck if any vGPU virtual machines are running or if the vGPU plugin is enabled on the hypervisor. Look for active vGPU assignments in the hypervisor's VM configuration or use 'nvidia-smi' to list vGPU-enabled VMs.Affected if No vGPU plugin is enabled and no VMs use vGPU, the vulnerability is not exploitable in the current state.
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Compare installed version against affected rangesCompare the detected Virtual GPU Manager version to the affected ranges: 8.0 <= version < 8.7, 11.0 <= version < 11.4, or 12.0 <= version < 12.2.Affected if The version falls within any of these ranges and the vGPU plugin is active, the environment is affected by this CVE.
The environment is affected if the NVIDIA Virtual GPU Manager version is between 8.0 and 8.6, 11.0 and 11.3, or 12.0 and 12.1 AND the vGPU plugin is enabled or any VMs are using vGPU functionality.
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 data8.711.412.2
Upgrade NVIDIA vGPU software to version 12.2 or later for 12.x, 11.4 or later for 11.x, and 8.7 or later for 8.x to obtain the patched release that properly validates input lengths.
- Consultation6.0 h
- Implementation8.0 h
- Testing12.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-1082 — 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-2021-1082 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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