CVE-2021-0477: High severity Google Android vulnerability

Published May 1, 2021
·
Updated

In notifyScreenshotError of ScreenshotNotificationsController.java, there is a possible permission bypass due to an unsafe PendingIntent. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.

Affected Software

9 affected componentsFixes available
Google Android=8.1
Google Android=9.0
Google Android=10.0
Google Android=11.0
Google Android
android/platform/frameworks/base>=8.1:0<8.1:2021-05-01
8.1:2021-05-01
android/platform/frameworks/base>=9:0<9:2021-05-01
9:2021-05-01
android/platform/frameworks/base>=10:0<10:2021-05-01
10:2021-05-01
android/platform/frameworks/base>=11:0<11:2021-05-01
11:2021-05-01

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade android/platform/frameworks/base to a version that resolves this vulnerability.

    Fixed in 8.1:2021-05-01
  2. Upgrade

    Upgrade android/platform/frameworks/base to a version that resolves this vulnerability.

    Fixed in 9:2021-05-01
  3. Upgrade

    Upgrade android/platform/frameworks/base to a version that resolves this vulnerability.

    Fixed in 10:2021-05-01
  4. Upgrade

    Upgrade android/platform/frameworks/base to a version that resolves this vulnerability.

    Fixed in 11:2021-05-01

Event History

May 1, 2021
Advisory Published
via OSV·12:00 AM
Data Sourced
via OSV·12:00 AM
DescriptionAffected Software
May 3, 2021
CVE Published
via Android·12:00 AM
Data Sourced
via Android·12:00 AM
SeverityWeaknessAffected Software
Jun 11, 2021
CVE Published
via MITRE·04:42 PM
Data Sourced
via MITRE·04:42 PM
DescriptionWeakness

Frequently Asked Questions

1

Who is exposed to this issue?

Devices running Android 8.1, 9, 10, or 11 are affected. Exploitation requires local access and execution privileges as a user.

2

Does exploitation require user interaction?

No. The issue can be exploited without user interaction once the attacker has the required local user execution privileges.

3

What is the impact of successful exploitation?

Successful exploitation could allow a local attacker to bypass permissions and escalate privileges. The CVSS vector indicates potential high impact to confidentiality, integrity, and availability.

4

What should administrators do?

Apply the available patch from the Android security update information associated with Android ID A-178189250.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203