CVE-2025-33242: NVIDIA Hgx And Dgx b300

Medium severity, CVSS 5.9. EPSS: 0.3% chance of exploitation in the next 30 days.

NVIDIA B300 MCU contains a vulnerability in the CX8 MCU that could allow a malicious actor to modify unsupported registries, causing a bad state. A successful exploit of this vulnerability might lead to denial of service and data tampering.

Affected products

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