EUVD-2026-65603
GHSA-3c69-p2q7-658r
Severity by source
AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Vendor-provided vector is consistent with description: local firmware access requires high privilege, scope changes as firmware compromise breaches OS trust boundary, full CIA impact confirmed by tags.
Primary rating from Vendor (nvidia).
CVSS VectorVendor: nvidia
Lifecycle Timeline
2DescriptionCVE.org
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.
Articles & Coverage 1
AnalysisAI
Out-of-bounds write in NVIDIA DGX Spark system firmware enables a privileged local attacker to corrupt memory and achieve code execution, privilege escalation, denial of service, information disclosure, or data tampering. The CVSS scope-change indicator (S:C) is the critical risk amplifier here - successful exploitation can breach the firmware's security boundary and affect components outside it, including potentially the host OS or hypervisor layer. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires local system access with high privileges (CVSS AV:L/PR:H confirmed by vendor vector) - the attacker must already hold elevated OS-level or firmware-management-level credentials on the targeted DGX Spark unit. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.2 base score reflects a meaningful but bounded threat profile: local access (AV:L) and high privilege requirements (PR:H) constrain who can trigger this, but the changed scope (S:C) and full High ratings across Confidentiality, Integrity, and Availability justify the elevated score. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | The primary remediation is to apply the firmware update referenced in the NVIDIA Product Security advisory at https://github.com.NVIDIA/product-security/tree/main/2026/5867. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: inventory all DGX Spark systems in your environment and document current firmware versions. …
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NULL pointer dereference in NVIDIA DGX Spark system firmware enables a local privileged attacker to achieve code executi
Out-of-bounds write in NVIDIA DGX Spark system firmware permits a locally authenticated, highly privileged attacker to c
Host impersonation and machine-in-the-middle attacks against NVIDIA DGX OS systems are possible because the factory prov
UEFI protection mechanism failure in NVIDIA DGX Spark allows a privileged local user to bypass the UEFI administrator pa
Out-of-bounds read in the NVIDIA DGX Spark standalone Memory Management (MM) firmware enables a local high-privileged at
Same weakness CWE-787 – Out-of-bounds Write
View allSame technique Memory Corruption
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External POC / Exploit Code
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