CVE-2026-24218
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 OS contains a vulnerability in the factory provisioning process, where the cloning of a base image causes identical SSH host keys to be deployed across multiple systems. The sharing of cryptographic identifiers across all similarly provisioned systems enables host impersonation or attacker-in-the-middle attacks. A successful exploit of this vulnerability might lead to code execution, data tampering, escalation of privileges, information disclosure, and 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 confidenceNVIDIA DGX OS factory provisioning clones a base image resulting in identical SSH host keys across multiple systems. This violates SSH security fundamentals where host keys must be unique per system to prevent MITM attacks. An attacker with access to the network can impersonate any provisioned system or intercept traffic between systems.
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 dataall versionsCVSS 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
- Network
- Complexity
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:H/PR:N/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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Verify system is running NVIDIA DGX OSRun 'cat /etc/os-release' or 'hostnamectl' to confirm the operating system is Nvidia DGX OSAffected if The system is running Nvidia DGX OS (any version)
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Check SSH host key files existList files in /etc/ssh/ directory: 'ls -la /etc/ssh/ssh_host_*_key*' to confirm SSH host keys are presentAffected if SSH host key files exist on the system
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Compare SSH host keys across multiple DGX systemsOn each DGX system, run 'cat /etc/ssh/ssh_host_rsa_key.pub' and compare the fingerprints across different physical units using 'ssh-keygen -lf /etc/ssh/ssh_host_rsa_key.pub'Affected if Multiple DGX systems share identical SSH host key fingerprints (the same key material)
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Check for SSH host key regeneration logsExamine system logs for indicators of host key regeneration using 'grep -i 'ssh.*host.*key' /var/log/syslog' or check /var/log/auth.log for key generation eventsAffected if No host key regeneration events are logged and keys remain at factory default state
If multiple DGX systems in your environment share identical SSH host key fingerprints, you are affected by this vulnerability.
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 dataRegenerate unique SSH host keys on all affected systems using ssh-keygen -A and update the factory provisioning process to generate unique cryptographic identifiers during image deployment.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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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-2026-24218 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
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- Version or environment caveats, and links to real fixes
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