How severe is CVE-2026-24263?

CVE-2026-24263 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-24263 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-24263?

CVE-2026-24263 affects Nvidia Dgx Spark Uefi. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-24263?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-24263 published?

CVE-2026-24263 was published on 2026-08-25 and last updated on 2026-09-09.

CVE-2026-24263

CVE-2026-24263 is a high-severity vulnerability in Nvidia Dgx Spark Uefi with a CVSS 3.x base score of 8.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: High (CVSS 3.x base score 8.2)
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Nvidia Dgx Spark Uefi
Published: 2026-08-25
Last modified: 2026-09-09

Description

NVIDIA DGX Spark contains a vulnerability in the system firmware, where a privileged attacker could be able to cause a NULL pointer dereference. A successful exploit of this vulnerability may lead to code execution, escalation of privileges, denial of service, information disclosure, and data tampering.

Frequently asked questions

What is CVE-2026-24263?: NVIDIA DGX Spark contains a vulnerability in the system firmware, where a privileged attacker could be able to cause a NULL pointer dereference. A successful exploit of this vulnerability may lead to code execution, escalation of privileges, denial of service, information disclosure, and data tampering.
How severe is CVE-2026-24263?: CVE-2026-24263 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-24263 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-24263?: CVE-2026-24263 affects Nvidia Dgx Spark Uefi. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-24263?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-24263 published?: CVE-2026-24263 was published on 2026-08-25 and last updated on 2026-09-09.

References

Affected products (1)

cpe:2.3:o:nvidia:dgx_spark_uefi:*:*:*:*:*:*:*:*

More vulnerabilities in Nvidia Dgx Spark Uefi

CVE-2026-47626 — High (CVSS 8.2): NVIDIA DGX Spark contains a vulnerability in the system firmware, where a privileged attacker could be able to cause an…
CVE-2026-24262 — High (CVSS 8.2): NVIDIA DGX Spark contains a vulnerability in the system firmware, where a privileged attacker could be able to cause an…
CVE-2026-47624 — Medium (CVSS 6.0): NVIDIA DGX Spark contains a vulnerability in UEFI where a Attacker may cause a/an CWE-693 by privileged local user. A…
CVE-2026-24225 — Medium (CVSS 6.0): NVIDIA DGX Spark contains a vulnerability in the standalone MM firmware where an attacker could be able to cause an…

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