CVE-2025-23348: NVIDIA Megatron-Lm

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

NVIDIA Megatron-LM for all platforms contains a vulnerability in the pretrain_gpt script, where malicious data created by an attacker may cause a code injection issue. 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 0.12.3 (fixed in 0.12.3); version 0.13.0 only

Published 2025-09-24. Last modified 2026-06-17.