CVE-2023-0203 Missing authorization in NVIDIA ConnectX Firmware

Medium 5.0 Published 22 Apr 2023 Updated 4 Feb 2025

An unprivileged user can exploit insufficient access control in NVIDIA ConnectX NIC firmware to cause a denial of service.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-0203?

CVE-2023-0203 is a medium-severity missing authorization vulnerability in NVIDIA ConnectX Firmware, published on 22 Apr 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

NVIDIA ConnectX-5, ConnectX-6, and ConnectX6-DX contain a vulnerability in the NIC firmware, where an unprivileged user can exploit insufficient granularity of access control, which may lead to denial of service.

Weakness: CWE-1220

Which versions are affected by CVE-2023-0203?

It affects 1 product.

Products include Nvidia Connectx Firmware.

How do I fix CVE-2023-0203?

No fix has been published for CVE-2023-0203 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2023-0203 being exploited?

There is no known exploitation of CVE-2023-0203 in the wild and no public exploit code.

Sources

Also known as GHSA-9hf4-r86q-ffr6.