CVE-2021-34403

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: 2022-01-18 · updated 2026-06-17
Weakness: CWE-416

Description

NVIDIA Linux distributions contain a vulnerability in nvmap ioctl, which allows any user with a local account to exploit a use-after-free condition, leading to code privilege escalation, loss of confidentiality and integrity, or denial of service.

Affected products

NVIDIA SHIELD TV: before 9.0 — fixed in 9.0

How to fix

Upgrade to a fixed version: NVIDIA SHIELD TV 9.0. Check the vendor advisory for mitigations.

References

https://nvidia.custhelp.com/app/answers/detail/a_id/5259
https://nvidia.custhelp.com/app/answers/detail/a_id/5259

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