How severe is CVE-2021-1056?

CVE-2021-1056 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 high, integrity none, and availability high.

Is CVE-2021-1056 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-1056?

CVE-2021-1056 primarily affects Nvidia Gpu Driver. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-1056?

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-2021-1056 published?

CVE-2021-1056 was published on 2021-01-08 and last updated on 2026-06-17.

CVE-2021-1056

CVE-2021-1056 is a high-severity vulnerability in Nvidia Gpu 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-276.

Key facts

Severity: High (CVSS 3.x base score 7.1)
CVSS v2: 3.6
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-276
Affected product: Nvidia Gpu Driver
Published: 2021-01-08
Last modified: 2026-06-17

Description

NVIDIA GPU Display Driver for Linux, all versions, contains a vulnerability in the kernel mode layer (nvidia.ko) in which it does not completely honor operating system file system permissions to provide GPU device-level isolation, which may lead to denial of service or information disclosure.

Frequently asked questions

What is CVE-2021-1056?: NVIDIA GPU Display Driver for Linux, all versions, contains a vulnerability in the kernel mode layer (nvidia.ko) in which it does not completely honor operating system file system permissions to provide GPU device-level isolation, which may lead to denial of service or information disclosure.
How severe is CVE-2021-1056?: CVE-2021-1056 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 high, integrity none, and availability high.
Is CVE-2021-1056 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-1056?: CVE-2021-1056 primarily affects Nvidia Gpu Driver. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-1056?: 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-2021-1056 published?: CVE-2021-1056 was published on 2021-01-08 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:nvidia:gpu_driver:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

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Other CWE-276 (Incorrect Default Permissions) vulnerabilities

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CVE-2020-29491 — Critical (CVSS 10.0): Dell Wyse ThinOS 8.6 and prior versions contain an insecure default configuration vulnerability. A remote…
CVE-2025-40585 — Critical (CVSS 9.9): A vulnerability has been identified in Energy Services (All versions with G5DFR). Affected solutions using G5DFR…
CVE-2019-19896 — Critical (CVSS 9.9): In IXP EasyInstall 6.2.13723, there is Remote Code Execution via weak permissions on the Engine Service share. The…
CVE-2020-37129 — Critical (CVSS 9.8): Memu Play 7.1.3 contains an insecure folder permissions vulnerability that allows low-privileged users to modify the…

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