CVE-2025-33248: NVIDIA Megatron-Lm

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

NVIDIA Megatron-LM contains a vulnerability in the hybrid conversion script where an Attacker may cause an RCE by convincing a user to load a maliciously crafted file. A successful exploit of this vulnerability may lead to code execution, escalation of privileges, information disclosure, and data tampering.

Affected products

• NVIDIA Megatron-Lm: before 0.15.3 (fixed in 0.15.3)

Published 2026-03-24. Last modified 2026-06-17.