CVE-2022-31600
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 DGX A100 contains a vulnerability in SBIOS in the SmmCore, where a user with high privileges can chain another vulnerability to this vulnerability, causing an integer overflow, possibly leading to code execution, escalation of privileges, denial of service, compromised integrity, and information disclosure. The scope of impact can extend to other components.
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 confidenceInteger overflow vulnerability in the SmmCore component of SBIOS on NVIDIA DGX A100 systems. An attacker with high privileges can chain this with another vulnerability to trigger the overflow, potentially achieving code execution, privilege escalation, denial of service, integrity compromise, or information disclosure. The impact scope can extend beyond the SBIOS to other system components.
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< 22.5.5CVSS 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
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/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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Confirm system is a DGX A100Check the system model via `ipmitool -I lanplus -H <bmc_ip> -U <user> -P <pass> fru print` or check the physical system labelAffected if System model does not contain 'DGX A100' or is a different NVIDIA product
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Check SBIOS firmware versionRun `ipmitool -I lanplus -H <bmc_ip> -U <user> -P <pass> raw 0x06 0x08` or access BMC web interface to view firmware/BIOS version informationAffected if Cannot retrieve version or command fails (system may not be DGX A100 or may use different BMC interface)
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Compare installed firmware version to affected rangeCompare the obtained firmware version against the affected version range: < 22.5.5. Note the firmware version format may appear as 22.5.50 or similar.Affected if Installed firmware version is any version prior to 22.5.5 (for example 22.1.XX, 21.XX.XX, etc.)
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Verify SMM is operationalThis vulnerability exists in the SmmCore component which runs in System Management Mode automatically. No user-configurable feature controls this - it is always present in affected firmware versions.Affected if System is a DGX A100 with firmware version below 22.5.5 (SMM executes silently in background)
A user is affected if they are running an NVIDIA DGX A100 system with SBIOS firmware version lower than 22.5.5, as the integer overflow in SmmCore will be present regardless of system configuration.
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 · scoped22.5.5
Apply NVIDIA-provided firmware/BIOS updates for the DGX A100. Conduct assessment to identify and address any chained vulnerabilities that could be used in conjunction with this issue.
22.5.5 or later
- Check current firmware version on the DGX A100 system using NVIDIA system management tools or BIOS utilities
- Download firmware version 22.5.5 or later from NVIDIA's official support portal (nvidia.custhelp.com)
- Follow NVIDIA's documented firmware update procedure for DGX A100, which typically involves using NVIDIA System Management or flashing via the BMC/BIOS interface
- After flashing, verify the firmware has been updated to version 22.5.5 or later
- Reboot the system as required by the firmware update process
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation8.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $9,088.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-31600 — 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-2022-31600 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
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