Auth bypass in Google Android

CVE-2021-39706

In onResume of CredentialStorage.java, there is a possible way to cleanup content of credentials storage due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12Android ID: A-200164168

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (49.5th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 49.5% 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-2021-39706: held from 0.007 to 0.007.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

  • Google Android — versions 10.0, 11.0, 12.0
  • Android — versions Android-10 Android-11 Android-12

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-39706?
CVE-2021-39706 is a high-severity vulnerability in Google Android, classified under Missing Authorization. CVSS score: 7.8/10. Published 2022-03-16.
How severe is CVE-2021-39706?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2021-39706 known to be exploited?
9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.