Buffer overflow in NVIDIA Dgx Spark
CVE-2026-47626
NVIDIA DGX Spark contains a vulnerability in the system firmware, where a privileged attacker could be able to cause an out-of-bounds write. A successful exploit of this vulnerability may lead to code execution, escalation of privileges, denial of service, information disclosure, and data tampering.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (8.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 8.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- NVIDIA Dgx Spark — versions 0 to 1.110.12
- NVIDIA Dgx Spark Uefi
Weakness classification (CWE)
References
- nvd.nist.gov/vuln/detail/CVE-2026-47626 (US Government Resource)
- www.cve.org/CVERecord (Third Party Advisory)
- github.com/NVIDIA/product-security/tree/main/2026/5867 (Product)
Frequently asked questions
- What is CVE-2026-47626?
- CVE-2026-47626 is a high-severity vulnerability in NVIDIA Dgx Spark, classified under Out-of-bounds Write. CVSS score: 8.2/10. Published 2026-08-25.
- How severe is CVE-2026-47626?
- High severity. CVSS v3 base score is 8.2 out of 10.