CVE-2025-23303
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 NeMo Framework for all platforms contains a vulnerability where a user could cause a deserialization of untrusted data by remote code execution. A successful exploit of this vulnerability might lead to code execution and data tampering.
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 NeMo Framework contains a deserialization vulnerability where processing untrusted data can lead to remote code execution. An attacker can exploit this flaw to execute arbitrary code and tamper with data on affected 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 data< 2.3.2CVSS 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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/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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Check if NVIDIA NeMo is installedRun 'pip show nemo' or 'pip list | grep -i nemo' to list installed NeMo packagesAffected if NeMo package is present in the environment
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Determine installed NeMo versionRun 'pip show nemo' and note the Version field, or check the nemo/__version__.py file if accessibleAffected if Version is lower than 2.3.2 (e.g., 2.3.1, 2.3.0, 2.2.x, etc.)
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Check if NeMo deserialization features are in useReview application code and logs for usage of pickle, torch.load, or similar deserialization functions that process data from external sourcesAffected if The application deserializes untrusted data using NeMo's processing pipeline
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Verify NeMo service network exposureCheck network configuration, firewall rules, and service bindings to determine if NeMo API/services are accessible from untrusted networksAffected if NeMo services are exposed to untrusted/network-accessible interfaces
The environment is affected if NeMo is installed with a version lower than 2.3.2 and the application processes untrusted deserialized data through NeMo's framework.
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 · scoped2.3.2
Apply vendor-provided patches immediately. Until a patch is available, restrict network access to NeMo services and validate/sanitize all deserialized input data.
Nemo 2.3.2 or later
- Upgrade the NVIDIA NeMo Framework installation to version 2.3.2 or later
- Verify the upgrade by checking the installed version using the appropriate package manager or framework version check command
- Test that the deserialization functionality works correctly after upgrade
- Ensure no unauthorized code execution is possible through deserialization endpoints
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation8.0 h
- Implementation24.0 h
- Testing12.0 h
- Review / QA8.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $14,656.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-23303 — 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-2025-23303 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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