CVE-2025-33242CWE-1234

NVIDIA B300 MCU contains a vulnerability in the CX8 MCU that could allow a malicious actor to modify unsupported registries, causing a bad state

Medium · published March 24, 2026

CVSS v3.1
5.9
EPSS
0%
Percentile
23.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00311 · 23.5th percentile
Weakness
CWE-1234 · Hardware Internal or Debug Modes Allow Override of Locks
Published
2026-03-24T20:22Z
EPSS history
Timeline
  • 24 MAR 20:22Z
    NVIDIA B300 MCU contains a vulnerability in the CX8 MCU that could allow a malicious actor to modify unsupported registries, causing a bad state
    cvelistv5