CVE-2023-25529: NVIDIA Dgx h100 Firmware

High severity, CVSS 8.1. EPSS: 0.6% chance of exploitation in the next 30 days.

NVIDIA DGX H100 BMC and DGX A100 BMC contains a vulnerability in the host KVM daemon, where an unauthenticated attacker may cause a leak of another user’s session token by observing timing discrepancies between server responses. A successful exploit of this vulnerability may lead to information disclosure, escalation of privileges, and data tampering.

Affected products

• NVIDIA Dgx h100 Firmware: before 23.08.18 (fixed in 23.08.18)

Published 2023-09-20. Last modified 2026-06-17.