CVE-2025-33253

Vulnerability

Overview CVE-2025-33253 is a vulnerability in the NVIDIA NeMo Framework that allows remote code execution via malicious file loading. The root cause lies in insufficient validation of user-supplied files, enabling an untrusted file to trigger arbitrary code execution within the framework [1]. NeMo is a scalable generative AI framework used for large language models, multimodal AI, and speech, and automatic speech recognition [2].

Attack

Vector To exploit this vulnerability, an attacker must convince a user to load a specially crafted file into the NeMo Framework. The attack requires no network-based exploitation beyond the file delivery, and the user action is the critical precondition. The vulnerability resides in how NeMo processes input data without proper sanitization [1].

Impact

A successful exploit could lead to code execution, denial of service, information disclosure, and data tampering. The scope is broad because NeMo is used in training and inference pipelines where compromised models or tampered data could cascade into system-wide impacts [1].

Mitigation

Status NVIDIA has not yet published a patch or detailed advisory beyond the CVE description [1]. Users should monitor official NeMo channels and the GitHub repository for updates [2]. Until a fix is available, avoid loading untrusted files into the framework and apply strict file validation policies.