### Security Bulletin: NVIDIA Networking BlueField, ConnectX - September 2026

Updated 2026-09-29

NVIDIA has released a software update for NVIDIA® Networking BlueField, ConnectX.&nbsp;<div>To protect your system, download and install the latest NVIDIA firmware from the links provided in this bulletin.</div>

Go to [NVIDIA Product Security](https://www.nvidia.com/security/)

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### Details

This section provides a summary of potential vulnerabilities that this security update addresses and their impact. Descriptions use [CWE&trade;](https://cwe.mitre.org/), and base scores and vectors use [CVSS v3.1](https://www.first.org/cvss/specification-document) standards.

| **CVE ID** | **Description** | **Vector** | **Base Score** | **Severity** | **CWE** | **Impacts** |
| ---------- | ---------------- | ---------- | -------------- | ------------ | -------- | ------------ |
| CVE-2025-33207 | 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. | [CVSS:3.1<br>/AV:A<br>/AC:L<br>/PR:L<br>/UI:N<br>/S:C<br>/C:N<br>/I:N<br>/A:H](https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H) | 6.8 | MEDIUM | [CWE-1262](https://cwe.mitre.org/data/definitions/1262.html) | Denial of service |

The NVIDIA risk assessment is based on an average of risk across a diverse set of installed systems and might not represent the true risk to your local installation. NVIDIA recommends evaluating the risk to your specific configuration.

### Security Updates

To protect your system, download and install the latest NVIDIA components from the links provided in this document.

The following table lists the software products and versions affected, and the updated version available from nvidia.com that includes this security update.

| **CVE Addressed** | **Affected Products** | **Platform or OS** | **Affected Versions** | **Updated Version** |
| --------------------- | --------------------- | ----------------- | --------------------- | ------------------- |
| CVE-2025-33207 | BlueField GA | BlueField-2 | All versions prior to 47.1020 | 47.1020 or newer |
| CVE-2025-33207 | BlueField LTS23 | BlueField-2 | All versions prior to 39.5124 | 39.5124 or newer |
| CVE-2025-33207 | BlueField LTS24 | BlueField-2 | All versions prior to 43.4100 | 43.4100 or newer |
| CVE-2025-33207 | ConnectX GA | ConnectX-6 DE, ConnectX-6 DX, ConnectX-6 LX | All versions prior to 47.1020 | 47.1020 or newer |
| CVE-2025-33207 | ConnectX LTS23 | ConnectX-6, ConnectX-6 DE, ConnectX-6 DX, ConnectX-6 LX | All versions prior to 39.5124 | 39.5124 or newer |
| CVE-2025-33207 | ConnectX LTS24 | ConnectX-6, ConnectX-6 DE, ConnectX-6 DX, ConnectX-6 LX | All versions prior to 43.4100 | 43.4100 or newer |
| CVE-2025-33207 | ConnectX-5 | ConnectX-5 | All versions prior to 16.35.8008 | 16.35.8008 or newer |

### Notes

This issue was found internally.



### Get the Most Up-to-Date Product Security Information

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- See the current list of NVIDIA security bulletins
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- Learn more about the vulnerability management process followed by the NVIDIA Product Security Incident Response Team (PSIRT)

### Revision History

| **Revision** | **Date** | **Description** |
| ------------ | -------- | --------------- |
| 1.0.0 | 2026-09-29 | Initial Release |

### Support
If you have any questions about this security bulletin, contact [NVIDIA Support](https://www.nvidia.com/object/support.html).

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