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VulnerabilityPublished Updated

CVE-2025-33226: NVIDIA NeMo Framework · Deserialization of Untrusted Data

Affects NVIDIA NeMo FrameworkSource CVE Database V5

0

Not known to be exploited · CVSS 7.8 High : upgrade to 2.5.3 soon.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.5.3
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 16 Dec 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade nvidia-nemo to 2.5.3.

Affected software

ProductAffectedFixed in
PyPInvidia-nemopkg:pypi/nvidia-nemoOther threatsAffected
  • <2.5.3
Fixed in
  • 2.5.3

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

If you cannot patch yet, organizations should implement strict access controls to limit local access to systems running the NeMo Framework. Employ application whitelisting and endpoint protection solutions to detect and prevent unauthorized code execution. Monitor system and application logs for unusual deserialization activities or anomalies indicative of exploitation attempts. Segregate environments running NeMo to minimize exposure and reduce the attack surface. Educate developers and administrators about the risks of deserialization vulnerabilities and encourage secure coding practices, including input validation and use of safe serialization libraries. Once NVIDIA releases a patch (version 2.5.3 or later), prioritize immediate deployment across all affected systems. Additionally, consider employing runtime application self-protection (RASP) tools that can detect and block malicious deserialization at runtime. Regularly update threat intelligence feeds to stay informed about emerging exploits related to this vulnerability.

Description

NVIDIA NeMo Framework for all platforms contains a vulnerability where malicious data created by an attacker may cause a code injection. A successful exploit of this vulnerability may lead to code execution, escalation of privileges, information disclosure, and data tampering.

References

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