CVE-2023-25521

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-07-04 · updated 2026-06-17
Weakness: CWE-250

Description

NVIDIA DGX A100/A800 contains a vulnerability in SBIOS where an attacker may cause execution with unnecessary privileges by leveraging a weakness whereby proper input parameter validation is not performed. A successful exploit of this vulnerability may lead to denial of service, information disclosure, and data tampering.

Affected products

NVIDIA DGX servers: before 1.21 — fixed in 1.21
NVIDIA Dgx A800 Firmware: before 1.21 — fixed in 1.21

How to fix

Upgrade to a fixed version: NVIDIA DGX servers 1.21; NVIDIA Dgx A800 Firmware 1.21. Check the vendor advisory for mitigations.

References

https://nvidia.custhelp.com/app/answers/detail/a_id/5461
https://nvidia.custhelp.com/app/answers/detail/a_id/5461

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