How severe is CVE-2021-1091?

CVE-2021-1091 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2021-1091 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-1091?

CVE-2021-1091 affects Nvidia Gpu Display Driver. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-1091?

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-2021-1091 published?

CVE-2021-1091 was published on 2021-07-22 and last updated on 2026-06-17.

CVE-2021-1091

CVE-2021-1091 is a high-severity vulnerability in Nvidia Gpu Display Driver with a CVSS 3.x base score of 7.1. 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-59.

Key facts

Severity: High (CVSS 3.x base score 7.1)
CVSS v2: 3.6
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-59
Affected product: Nvidia Gpu Display Driver
Published: 2021-07-22
Last modified: 2026-06-17

Description

NVIDIA GPU Display driver for Windows contains a vulnerability where an unprivileged user can create a file hard link that causes the driver to overwrite a file that requires elevated privilege to modify, which could lead to data loss or denial of service.

Frequently asked questions

What is CVE-2021-1091?: NVIDIA GPU Display driver for Windows contains a vulnerability where an unprivileged user can create a file hard link that causes the driver to overwrite a file that requires elevated privilege to modify, which could lead to data loss or denial of service.
How severe is CVE-2021-1091?: CVE-2021-1091 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2021-1091 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-1091?: CVE-2021-1091 affects Nvidia Gpu Display Driver. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-1091?: 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-2021-1091 published?: CVE-2021-1091 was published on 2021-07-22 and last updated on 2026-06-17.

References

https://nvidia.custhelp.com/app/answers/detail/a_id/5211

Affected products (1)

cpe:2.3:a:nvidia:gpu_display_driver:*:*:*:*:*:windows:*:*

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