CVE-2023-0202 Memory corruption in NVIDIA DGX servers

High 7.5 Published 22 Apr 2023 Updated 4 Feb 2025

Attackers can modify SMRAM memory via SMM APIs, leading to privilege escalation, denial of service, and information disclosure on NVIDIA DGX servers.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-0202?

CVE-2023-0202 is a high-severity memory corruption vulnerability in NVIDIA DGX servers, published on 22 Apr 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

NVIDIA DGX A100 SBIOS contains a vulnerability where an attacker may modify arbitrary memory of SMRAM by exploiting the GenericSio and LegacySmmSredir SMM APIs. A successful exploit of this vulnerability may lead to denial of service, escalation of privileges, and information disclosure.

Weakness: CWE-119

Which versions are affected by CVE-2023-0202?

It affects 1 product.

Products include Nvidia Dgx A100 Firmware.

How do I fix CVE-2023-0202?

No fix has been published for CVE-2023-0202 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2023-0202 being exploited?

There is no known exploitation of CVE-2023-0202 in the wild and no public exploit code.

Sources

Also known as GHSA-6fqg-j6g5-mh37.