What is CVE-2020-0052?

CVE-2020-0052 is a medium-severity vulnerability in Google Android, classified under Missing Authentication for Critical Function. CVSS score: 4.3/10. Published 2020-03-10.

How severe is CVE-2020-0052?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Google Android

CVE-2020-0052

In smsSelected of AnswerFragment.java, there is a way to send an SMS from the lock screen due to a permissions bypass. This could lead to local escalation of privilege on the lock screen with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10Android ID: A-137102479

Vulnerability class: Broken Authentication

Published 2020-03-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.002 (4.2th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Google Android — versions 10.0
Android — versions Android-10

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

source.android.com/security/bulletin/pixel/2020-03-01 (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2020-0052?: CVE-2020-0052 is a medium-severity vulnerability in Google Android, classified under Missing Authentication for Critical Function. CVSS score: 4.3/10. Published 2020-03-10.
How severe is CVE-2020-0052?: Medium severity. CVSS v3 base score is 4.3 out of 10.