Auth bypass in Google Android

CVE-2021-0513

In deleteNotificationChannel and related functions of NotificationManagerService.java, there is a possible permission bypass due to improper state validation. This could lead to local escalation of privilege via hidden services with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-9 Android-10 Android-11 Android-8.1Android ID: A-156090809

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:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (8.7th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 8.7% 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-2021-0513: 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 8.1, 9.0, 10.0
  • Android — versions Android-9 Android-10 Android-11 Android-8.1

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-0513?
CVE-2021-0513 is a high-severity vulnerability in Google Android, classified under Missing Authorization. CVSS score: 7.8/10. Published 2021-06-21.
How severe is CVE-2021-0513?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2021-0513 known to be exploited?
13 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.