What is CVE-2020-0420?

CVE-2020-0420 is a high-severity vulnerability in Google Android, classified under Improper Locking. CVSS score: 7.8/10. Published 2020-10-14.

How severe is CVE-2020-0420?

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

Is CVE-2020-0420 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Google Android

CVE-2020-0420

In setUpdatableDriverPath of GpuService.cpp, there is a possible memory corruption due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-162383705

Published 2020-10-14 · 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 (2.1th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 2.1% 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 — versions 11.0
Android — versions Android-11

Weakness classification (CWE)

Public proof-of-concept exploits

TinyNiko/android_

References

source.android.com/security/bulletin/2020-10-01 (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2020-0420?: CVE-2020-0420 is a high-severity vulnerability in Google Android, classified under Improper Locking. CVSS score: 7.8/10. Published 2020-10-14.
How severe is CVE-2020-0420?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2020-0420 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.