Auth bypass in Google Android

CVE-2021-0686

In getDefaultSmsPackage of RoleManagerService.java, there is a possible way to get information about the default sms app of a different device user due to a missing permission check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-10Android ID: A-177927831

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.001 (1.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2021-0686: held from 0.001 to 0.001.

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

Affected products

  • Google Android — versions 10.0, 11.0
  • Android — versions Android-11 Android-10

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-0686?
CVE-2021-0686 is a medium-severity vulnerability in Google Android, classified under Missing Authorization. CVSS score: 5.5/10. Published 2021-10-06.
How severe is CVE-2021-0686?
Medium severity. CVSS v3 base score is 5.5 out of 10.