What is CVE-2021-34403?

CVE-2021-34403 is a high-severity vulnerability in Google Android, classified under Use After Free. CVSS score: 7.8/10. Published 2022-01-18.

How severe is CVE-2021-34403?

High severity. CVSS v3 base score is 7.8 out of 10.

Use After Free in Google Android

CVE-2021-34403

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.

Vulnerability class: Use-After-Free

Published 2022-01-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (20.6th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 20.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Google Android
NVIDIA Shield Experience
NVIDIA Shield Tv — versions All versions prior to SE 9.0

Weakness classification (CWE)

CWE-416 — Use After Free

References

nvidia.custhelp.com/app/answers/detail/a_id/5259 (Vendor Advisory)

Frequently asked questions

What is CVE-2021-34403?: CVE-2021-34403 is a high-severity vulnerability in Google Android, classified under Use After Free. CVSS score: 7.8/10. Published 2022-01-18.
How severe is CVE-2021-34403?: High severity. CVSS v3 base score is 7.8 out of 10.