CVE-2025-23249
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 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 untrusted data can be deserialized, leading to remote code execution. Successful exploitation allows attackers to execute arbitrary code and tamper with data.
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< 25.02CVSS 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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Determine installed NeMo versionRun 'pip show nemo' or check the package version in your Python environment. On Linux systems, you may also check /opt/nemo or the installation directory for version manifests.Affected if The installed version is any release prior to 25.02 (e.g., 24.x, 1.x, etc.)
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Identify deserialization usage in codeSearch project codebases for use of deserialization functions such as pickle.load, yaml.load, jsonpickle.decode, marshal.load, or similar unpickling methods that process data from untrusted sources.Affected if The codebase deserializes data from untrusted or external sources without validation (e.g., user uploads, API payloads, network data)
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Verify input validation on data ingestionReview application or service configuration to determine if input validation layers exist before deserialization occurs. Check for schema validation, type checking, or allowlist filtering on data intake points.Affected if No input validation or sanitization is performed on data before it reaches deserialization routines
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Check network exposure of NeMo servicesInspect firewall rules, network policies, and service binding configurations to determine if NeMo APIs or web services handling data are exposed to untrusted networks or the internet.Affected if NeMo services processing data are accessible from untrusted networks without authentication barriers
You are affected if your NeMo installation version is below 25.02 AND your environment deserializes untrusted external data without prior validation or sanitization.
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 · scoped25.02
Apply the latest NVIDIA NeMo Framework security patch or update to a patched version. If no patch is available, disable or restrict deserialization of untrusted data inputs and implement input validation layers.
25.02
- 1. Identify the currently installed NVIDIA NeMo Framework version using pip list or the project's dependency file.
- 2. If the installed version is less than 25.02, plan for upgrade to version 25.02 or later.
- 3. Back up any custom configurations, models, and data before performing the upgrade.
- 4. Upgrade NVIDIA NeMo Framework using pip: pip install --upgrade nemo-toolkit or pip install nemo-toolkit==25.02 (or a later stable version).
- 5. Verify the installation was successful by checking the installed version: pip show nemo-toolkit.
- 6. Test critical workflows to ensure functionality is maintained after the upgrade.
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation8.0 h
- Implementation16.0 h
- Testing12.0 h
- Review / QA8.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-23249 — 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-2025-23249 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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