Deserialization Flaw in NVIDIA Merlin4Rec Trainer (CVE-2025-33213)
CVE-2025-33213 Published on December 9, 2025

NVIDIA Merlin Transformers4Rec for Linux contains a vulnerability in the Trainer component, where a user could cause a deserialization issue. A successful exploit of this vulnerability might lead to code execution, denial of service, information disclosure, and data tampering.

NVD

Vulnerability Analysis

CVE-2025-33213 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

What is a Marshaling, Unmarshaling Vulnerability?

The application deserializes untrusted data without sufficiently verifying that the resulting data will be valid.

CVE-2025-33213 has been classified to as a Marshaling, Unmarshaling vulnerability or weakness.


Affected Versions

NVIDIA Merlin Transformers4Rec Version All versions that do not include commit 876f19e is affected by CVE-2025-33213

Exploit Probability

EPSS
0.06%
Percentile
17.93%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.