CVE-2020-5966

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-06-25 · updated 2026-06-17
Weakness: CWE-476

Description

NVIDIA Windows GPU Display Driver, all versions, contains a vulnerability in the kernel mode layer (nvlddmkm.sys) handler for DxgkDdiEscape, in which a NULL pointer is dereferenced, leading to denial of service or potential escalation of privileges.

Affected products

NVIDIA Guest driver: from 390 before 392.61; from 418 before 426.78; from 440 before 443.18; from 450 before 451.48 — fixed in 392.61, 426.78, 443.18, 451.48

How to fix

Upgrade to a fixed version: NVIDIA Guest driver 392.61, 426.78, 443.18, 451.48. Check the vendor advisory for mitigations.

References

https://nvidia.custhelp.com/app/answers/detail/a_id/5031
https://nvidia.custhelp.com/app/answers/detail/a_id/5031

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