Hardware Internal or Debug Modes Allow Override of Locks in NVIDIA B300 MCU - CVE-2025-33242

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Main Vulnerability Database Vulnerabilities #VU130498

Hardware Internal or Debug Modes Allow Override of Locks in NVIDIA B300 MCU - CVE-2025-33242

Published: May 7, 2026


Vulnerability identifier: #VU130498
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-33242
CWE-ID: CWE-1234
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
NVIDIA B300 MCU
Software vendor:
nVidia

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in the CX8 MCU. A remote administrator can modify unsupported registries and cause denial of service (DoS) condition and data tampering.


Remediation

Install updates from vendor's website.

External links