CVE-2025-23354 Code injection in Megatron-LM
Attackers can execute arbitrary code and escalate privileges via malicious data in the ensemble classifier script of NVIDIA Megatron-LM.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-23354?
CVE-2025-23354 is a high-severity code injection vulnerability in NVIDIA Megatron-LM, published on 24 Sep 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
NVIDIA Megatron-LM for all platforms contains a vulnerability in the ensemble_classifer script where malicious data created by an attacker may cause an injection. A successful exploit of this vulnerability may lead to code execution, escalation of privileges, Information disclosure, and data tampering.
Weakness: CWE-94
Which versions are affected by CVE-2025-23354?
It affects 1 product.
Products include Nvidia Megatron-Lm.
How do I fix CVE-2025-23354?
No fix has been published for CVE-2025-23354 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2025-23354 being exploited?
There is no known exploitation of CVE-2025-23354 in the wild and no public exploit code.
Other vulnerabilities in NVIDIA Megatron-LM
Sources
Also known as GHSA-r5hm-xgfr-3f4g.