CVE-2023-31032
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 SBIOS contains a vulnerability where a user may cause a dynamic variable evaluation by local access. A successful exploit of this vulnerability may lead to denial of service.
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 confidenceThe NVIDIA DGX A100 SBIOS contains a vulnerability allowing local users to perform dynamic variable evaluation. This improper evaluation can trigger a denial of service condition, likely through system instability or crash caused by the manipulation of runtime variables in the system BIOS firmware.
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< 1.25CVSS 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.
-
Confirm system is NVIDIA DGX A100Identify the host system model (e.g., via dmidecode, system label, or hardware inventory) to verify it is an NVIDIA DGX A100 serverAffected if System is an NVIDIA DGX A100
-
Locate SBIOS firmware versionAccess the system BIOS/UEFI setup or use vendor-provided tools (such as NVIDIA system management interface or dmidecode) to retrieve the SBIOS firmware version installed on the DGX A100Affected if Unable to retrieve firmware version for comparison
-
Compare firmware version against affected rangeCheck if the installed SBIOS firmware version is less than 1.25. Any version below 1.25 (including 1.24, 1.23, etc.) falls within the affected rangeAffected if Installed SBIOS firmware version is < 1.25
The environment is affected if the system is an NVIDIA DGX A100 with SBIOS firmware version lower than 1.25.
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 · scoped1.25
Apply NVIDIA-provided firmware updates for the DGX A100 SBIOS when available, and restrict physical/local access to affected systems to limit exposure to only trusted personnel.
DGX A100 SBIOS firmware version 1.25 or later
- Identify the current DGX A100 SBIOS firmware version using NVIDIA system management tools or the BIOS setup utility
- Download the DGX A100 firmware update package version 1.25 or later from the NVIDIA Enterprise Support portal (enterprise.nvidia.com/support)
- Review the firmware update release notes for any specific pre-update requirements or precautions
- Follow NVIDIA's documented firmware update procedure for DGX A100 systems, typically involving the NVIDIA System Management or firmware update utility
- After updating, verify the SBIOS firmware has been successfully updated to version 1.25 or later
- Confirm the vulnerability is remediated by validating the firmware version
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation6.0 h
- Implementation12.0 h
- Testing6.0 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 $7,968.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-31032 — 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-2023-31032 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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.
- 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