Auth bypass in Google Android

CVE-2021-0317

In createOrUpdate of Permission.java and related code, there is possible permission escalation due to a logic error. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation. Product: Android; Versions: Android-10, Android-11, Android-8.0, Android-8.1, Android-9; Android ID: A-168319670.

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: 0.002 (8.9th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 8.9% 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-2021-0317: held from 0.002 to 0.002.

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

Affected products

  • Google Android — versions 8.0, 8.1, 9.0
  • Android — versions Android-10, Android-11, Android-8.0

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-0317?
CVE-2021-0317 is a high-severity vulnerability in Google Android, classified under Incorrect Authorization. CVSS score: 7.8/10. Published 2021-01-11.
How severe is CVE-2021-0317?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2021-0317 known to be exploited?
14 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.