What is CVE-2025-23349?

CVE-2025-23349 is a high-severity vulnerability in NVIDIA Megatron-Lm, classified under Code Injection. CVSS score: 7.8/10. Published 2025-09-24.

How severe is CVE-2025-23349?

High severity. CVSS v3 base score is 7.8 out of 10.

RCE in NVIDIA Megatron-Lm

CVE-2025-23349

NVIDIA Megatron-LM for all platforms contains a vulnerability in the tasks/orqa/unsupervised/nq.py component, where an attacker may cause a code injection. A successful exploit of this vulnerability may lead to code execution, escalation of privileges, information disclosure, and data tampering.

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.002 (12.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Nvidia Megatron-lm — versions 0.13.0, All versions prior to 0.13.1 and 0.12.3

Weakness classification (CWE)

CWE-94 — Code Injection

References

psirt@nvidia.com (Technical Description)
psirt@nvidia.com (Technical Description)
psirt@nvidia.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-23349?: CVE-2025-23349 is a high-severity vulnerability in NVIDIA Megatron-Lm, classified under Code Injection. CVSS score: 7.8/10. Published 2025-09-24.
How severe is CVE-2025-23349?: High severity. CVSS v3 base score is 7.8 out of 10.