CVE-2021-1098

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-07-21 · updated 2026-06-17
Weakness: CWE-404

Description

NVIDIA vGPU software contains a vulnerability in the Virtual GPU Manager (vGPU plugin), where it doesn't release some resources during driver unload requests from guests. This flaw allows a malicious guest to perform operations by reusing those resources, which may lead to information disclosure, data tampering, or denial of service. This affects vGPU version 12.x (prior to 12.3), version 11.x (prior to 11.5) and version 8.x (prior 8.8).

Affected products

NVIDIA Virtual GPU Software: from 8.0 before 8.8; from 11.0 before 11.5; from 12.0 before 12.3 — fixed in 11.5, 12.3, 8.8

How to fix

Upgrade to a fixed version: NVIDIA Virtual GPU Software 11.5, 12.3, 8.8. Check the vendor advisory for mitigations.

References

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