What is CVE-2020-0221?

CVE-2020-0221 is a critical-severity vulnerability in Google Android, classified under Incorrect Calculation. CVSS score: 9.8/10. Published 2020-05-14.

How severe is CVE-2020-0221?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Google Android

CVE-2020-0221

Airbrush FW's scratch memory allocator is susceptible to numeric overflow. When the overflow occurs, the next allocation could potentially return a pointer within the previous allocation's memory, which could lead to improper memory access.Product: AndroidVersions: Android kernelAndroid ID: A-135772851

Published 2020-05-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (37.9th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 37.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Google Android
Android — versions Android kernel

Weakness classification (CWE)

CWE-682 — Incorrect Calculation

References

source.android.com/security/bulletin/pixel/2020-05-01 (Vendor Advisory)

Frequently asked questions

What is CVE-2020-0221?: CVE-2020-0221 is a critical-severity vulnerability in Google Android, classified under Incorrect Calculation. CVSS score: 9.8/10. Published 2020-05-14.
How severe is CVE-2020-0221?: Critical severity. CVSS v3 base score is 9.8 out of 10.