# CVE-2025-23249: Deserialization in NeMo Framework

> An attacker can achieve remote code execution and data tampering via unsafe deserialization in the NVIDIA NeMo Framework.

- **Severity:** High 7.6 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 22 Apr 2025
- **Updated:** 26 Feb 2026
- **Also known as:** GHSA-623j-76jx-rrxr

## What is CVE-2025-23249?

CVE-2025-23249 is a high-severity unsafe deserialization vulnerability in NVIDIA NeMo Framework, published on 22 Apr 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

NVIDIA 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.

Weakness: CWE-502 (Deserialization of Untrusted Data)

## Which versions are affected by CVE-2025-23249?

It affects 1 product.


Products: Nvidia Nemo.

## How do I fix CVE-2025-23249?

No fix has been published for CVE-2025-23249 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-23249 being exploited?

There is no known exploitation of CVE-2025-23249 in the wild and no public exploit code.

## Other vulnerabilities in NVIDIA NeMo Framework

- [CVE-2024-0081](https://insights.sbomify.com/CVE-2024-0081/): Denial of service in NeMo (high 8.6)
- [CVE-2025-33245](https://insights.sbomify.com/CVE-2025-33245/): NVIDIA NeMo Framework contains a vulnerability where malicious data could cause remote code execution (high 8.0)
- [CVE-2026-24252](https://insights.sbomify.com/CVE-2026-24252/): Command injection in NeMo Framework (high 7.8)
- [CVE-2026-24155](https://insights.sbomify.com/CVE-2026-24155/): Code injection in NeMo Framework (high 7.8)
- [CVE-2026-24228](https://insights.sbomify.com/CVE-2026-24228/): Deserialization in NeMo Framework (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-23249 and fix it if it is affected.

What it is: CVE-2025-23249 is a high-severity unsafe deserialization vulnerability in NVIDIA NeMo Framework, published on 22 Apr 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2025-23249 in the wild and no public exploit code.

Affected product: NVIDIA NeMo Framework. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-23249/ (Markdown: https://insights.sbomify.com/CVE-2025-23249/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-23249
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-23249
- OSV: https://osv.dev/vulnerability/CVE-2025-23249

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-23249/
Summaries are generated and may contain mistakes; the official description above is the record.