CVE-2025-23350
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 ConnectX and BlueField contain a vulnerability in the command interface where a local user with virtual function (VF) access may cause a write out of bounds by crafted input. A successful exploit of this vulnerability may lead to arbitrary code execution on the device.
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 buffer overflow vulnerability exists in the command interface of NVIDIA ConnectX network adapters and BlueField DPUs. A local attacker with virtual function (VF) access can craft malicious input to trigger an out-of-bounds write, potentially achieving arbitrary code execution on the affected device firmware.
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
- Adjacent
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:A/AC:L/PR:L/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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Identify device modelQuery the network adapter or DPU to confirm whether it is an NVIDIA ConnectX adapter or BlueField DPU. Use vendor management tools or check hardware inventory documentation.Affected if The device is not an NVIDIA ConnectX or BlueField product.
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Check firmware versionRetrieve the current firmware version installed on the ConnectX adapter or BlueField DPU using NVIDIA firmware tools (e.g., mstflint, mlxconfig, or vendor management interface). Compare the installed version against the fixed firmware versions provided in the NVIDIA security bulletin.Affected if The installed firmware version is older than the fixed version listed in the NVIDIA advisory for this CVE.
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Verify VF access is enabledCheck whether Virtual Function (VF) interfaces are provisioned or enabled on the affected device. Use mlxconfig or the NVIDIA SwitchSMC tool to query VF configuration status. Review host configuration files that enumerate active VFs.Affected if VF access is enabled and exposed to untrusted local users.
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Inspect for suspicious command interface activityReview firmware logs, telemetry, or debug dumps from the command interface for signs of malformed commands or unexpected out-of-bounds memory access events. Check for any crash dumps or error logs indicating command processing failures.Affected if Logs show anomalous command interface behavior or memory corruption events originating from VF-issued commands.
The environment is affected if the device is a ConnectX adapter or BlueField DPU with an unpatched firmware version and VF access is enabled, allowing a local attacker to issue malicious commands.
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 vendor-supplied firmware update for ConnectX and BlueField devices. Restrict VF access to trusted local users until patching is complete.
- Consultation4.0 h
- Implementation8.0 h
- Testing12.0 h
- Review / QA6.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $8,192.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-23350 — 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-2025-23350 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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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
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