How severe is CVE-2023-25527?

CVE-2023-25527 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-25527 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-25527?

CVE-2023-25527 affects Nvidia Dgx H100 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-25527?

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-2023-25527 published?

CVE-2023-25527 was published on 2023-09-20 and last updated on 2026-06-17.

CVE-2023-25527

CVE-2023-25527 is a high-severity vulnerability in Nvidia Dgx H100 Firmware with a CVSS 3.x base score of 7.8. 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-119.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Nvidia Dgx H100 Firmware
Published: 2023-09-20
Last modified: 2026-06-17

Description

NVIDIA DGX H100 BMC contains a vulnerability in the host KVM daemon, where an authenticated local attacker may cause corruption of kernel memory. A successful exploit of this vulnerability may lead to arbitrary kernel code execution, denial of service, escalation of privileges, information disclosure, and data tampering.

Frequently asked questions

What is CVE-2023-25527?: NVIDIA DGX H100 BMC contains a vulnerability in the host KVM daemon, where an authenticated local attacker may cause corruption of kernel memory. A successful exploit of this vulnerability may lead to arbitrary kernel code execution, denial of service, escalation of privileges, information disclosure, and data tampering.
How severe is CVE-2023-25527?: CVE-2023-25527 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-25527 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-25527?: CVE-2023-25527 affects Nvidia Dgx H100 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-25527?: 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-2023-25527 published?: CVE-2023-25527 was published on 2023-09-20 and last updated on 2026-06-17.

References

https://nvidia.custhelp.com/app/answers/detail/a_id/5473

Affected products (1)

cpe:2.3:o:nvidia:dgx_h100_firmware:*:*:*:*:bmc:*:*:*

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