How severe is CVE-2021-34400?

CVE-2021-34400 has a CVSS 3.x base score of 4.1, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-34400 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-34400?

CVE-2021-34400 primarily affects Nvidia Dgx-1 P100. In total, 139 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-34400?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-34400 published?

CVE-2021-34400 was published on 2021-11-20 and last updated on 2026-06-17.

CVE-2021-34400

CVE-2021-34400 is a medium-severity vulnerability in Nvidia Dgx-1 P100 with a CVSS 3.x base score of 4.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 4.1)
CVSS v2: 2.1
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Nvidia Dgx-1 P100
Published: 2021-11-20
Last modified: 2026-06-17

Description

NVIDIA GPU and Tegra hardware contain a vulnerability in the internal microcontroller which may allow a user with elevated privileges to gain access to information from unscrubbed memory, which may lead to information disclosure.

Frequently asked questions

What is CVE-2021-34400?: NVIDIA GPU and Tegra hardware contain a vulnerability in the internal microcontroller which may allow a user with elevated privileges to gain access to information from unscrubbed memory, which may lead to information disclosure.
How severe is CVE-2021-34400?: CVE-2021-34400 has a CVSS 3.x base score of 4.1, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-34400 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-34400?: CVE-2021-34400 primarily affects Nvidia Dgx-1 P100. In total, 139 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-34400?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-34400 published?: CVE-2021-34400 was published on 2021-11-20 and last updated on 2026-06-17.

References

https://nvidia.custhelp.com/app/answers/detail/a_id/5263

Affected products (139)

cpe:2.3:h:nvidia:dgx-1_p100:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:dgx-1_v100:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:dgx-2:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:dgx_station_a100:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:drive_constellation:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gt_605:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gt_610:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gt_620:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gt_625:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gt_630:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gt_635:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gt_640:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gt_705:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gt_710:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gt_720:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gt_730:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gt_740:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gtx_1050:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gtx_1050_ti:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gtx_1060:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gtx_1070:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gtx_1070_ti:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gtx_1080:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gtx_1080_ti:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gtx_1650:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gtx_1650_super:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gtx_1660:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gtx_1660_super:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gtx_1660_ti:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gtx_645:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gtx_650:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gtx_650_ti:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gtx_650_ti_boost:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gtx_660:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gtx_660_ti:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gtx_670:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gtx_680:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gtx_690:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gtx_745:-:*:*:*:*:*:*:*
cpe:2.3:h:nvidia:geforce_gtx_750:-:*:*:*:*:*:*:*

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