CVE-2025-33207: Medium severity Nvidia ConnectX vulnerability

Published Sep 29, 2026
·
Updated

NVIDIA ConnectX and Bluefield contain a vulnerability in a control register, where a user with VF access could cause improper access control for the register interface by sending a malicious command to the firmware. A successful exploit of this vulnerability might lead to denial of service.

Affected Software

2 affected components
Nvidia ConnectX
Nvidia Bluefield

Event History

Sep 29, 2026
CVE Published
via MITRE·02:12 PM
Data Sourced
via MITRE·02:12 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·03:17 PM
DescriptionSeverityWeakness

Frequently Asked Questions

1

Who is in a position to exploit this issue?

An attacker needs access to a virtual function (VF) on an affected NVIDIA ConnectX or BlueField device. The attack is adjacent-network reachable and requires low privileges; no user interaction is required.

2

What is the expected impact of successful exploitation?

Successful exploitation may cause a denial of service. The provided information does not indicate confidentiality or integrity impact.

3

What attacker action triggers the vulnerability?

The attacker sends a malicious command to the device firmware, targeting the vulnerable control-register interface and causing improper access control.

Contact

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