CVE-2025-33191 Denial of service in DGX Spark
An attacker can cause an invalid memory read in NVIDIA DGX Spark GB10 OSROOT firmware, leading to denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-33191?
CVE-2025-33191 is a medium-severity denial of service vulnerability in NVIDIA DGX Spark, published on 25 Nov 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
NVIDIA DGX Spark GB10 contains a vulnerability in OSROOT firmware, where an attacker could cause an invalid memory read. A successful exploit of this vulnerability might lead to denial of service.
Weakness: CWE-20
Which versions are affected by CVE-2025-33191?
It affects 1 product.
Products include Nvidia Dgx Os.
How do I fix CVE-2025-33191?
No fix has been published for CVE-2025-33191 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-33191 being exploited?
There is no known exploitation of CVE-2025-33191 in the wild and no public exploit code.
Other vulnerabilities in NVIDIA DGX Spark
Sources
Also known as GHSA-2mg8-v7rr-mpqj.