SB20260507109 - Hardware Internal or Debug Modes Allow Override of Locks in nVidia B300 MCU
Published: May 7, 2026
Security Bulletin ID
SB20260507109
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Hardware Internal or Debug Modes Allow Override of Locks (CVE-ID: CVE-2025-33242)
CWE-ID: CWE-1234 - Hardware Internal or Debug Modes Allow Override of Locks
CVSSv4: 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
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 update from vendor's website.