What is CVE-2021-0526?

CVE-2021-0526 is a high-severity vulnerability in Google Android, classified under Use of Uninitialized Resource. CVSS score: 7.8/10. Published 2021-06-21.

How severe is CVE-2021-0526?

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

Vulnerability in Google Android

CVE-2021-0526

In memory management driver, there is a possible out of bounds write due to uninitialized data. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android SoCAndroid ID: A-185195264

Published 2021-06-21 · 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: 0.001 (1.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 1.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000

Affected products

Google Android
Android — versions Android SoC

Weakness classification (CWE)

CWE-908 — Use of Uninitialized Resource

References

source.android.com/security/bulletin/2021-06-01 (Vendor Advisory)

Frequently asked questions

What is CVE-2021-0526?: CVE-2021-0526 is a high-severity vulnerability in Google Android, classified under Use of Uninitialized Resource. CVSS score: 7.8/10. Published 2021-06-21.
How severe is CVE-2021-0526?: High severity. CVSS v3 base score is 7.8 out of 10.