CVE-2021-0331
In onCreate of NotificationAccessConfirmationActivity.java, there is a possible overlay attack...
In onCreate of NotificationAccessConfirmationActivity.java, there is a possible overlay attack due to an insecure default value. This could lead to local escalation of privilege and notification access with User execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-9 Android-10 Android-11 Android-8.1Android ID: A-170731783
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
In onCreate of NotificationAccessConfirmationActivity.java, there is a possible overlay attack due to an insecure default value. This could lead to local escalation of privilege and notification access with User execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-9 Android-10 Android-11 Android-8.1Android ID: A-170731783
- Record
CVE-2021-0331- CVSS 3.1
- 7.3 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.9 Medium
AV:L/AC:M/Au:N/C:C/I:C/A:C - Weakness
- CWE-1021
- Updated
- 2026-11-02
CVE ListNo score
In onCreate of NotificationAccessConfirmationActivity.java, there is a possible overlay attack due to an insecure default value. This could lead to local escalation of privilege and notification access with User execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-9 Android-10 Android-11 Android-8.1Android ID: A-170731783
- Record
CVE-2021-0331- Updated
- 2026-11-02
EUVDEUVD-2021-2950No score
In onCreate of NotificationAccessConfirmationActivity.java, there is a possible overlay attack due to an insecure default value. This could lead to local escalation of privilege and notification access with User execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-9 Android-10 Android-11 Android-8.1Android ID: A-170731783
- Record
EUVD-2021-2950- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9vc6-7g98-392vNo score
In onCreate of NotificationAccessConfirmationActivity.java, there is a possible overlay attack...
In onCreate of NotificationAccessConfirmationActivity.java, there is a possible overlay attack due to an insecure default value. This could lead to local escalation of privilege and notification access with User execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-9 Android-10 Android-11 Android-8.1Android ID: A-170731783
- Record
GHSA-9vc6-7g98-392v- Weakness
- CWE-1021
- Updated
- 2026-11-02
OSVASB-A-170731783No score
In onCreate of NotificationAccessConfirmationActivity.java, there is a possible overlay attack due to an insecure default value. This could lead to local escalation of privilege and notification access with User execution privileges needed. User interaction is needed for exploitation.
- Record
ASB-A-170731783- Updated
- 2026-11-10
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
platform/packages/apps/SettingsAndroid | 8.0:0 up to 8.0:2021-02-01, plus listed versions 8.0 | 8.0:2021-02-01 |
platform/packages/apps/SettingsAndroid | 8.1:0 up to 8.1:2021-02-01, plus listed versions 8.1 | 8.1:2021-02-01 |
platform/packages/apps/SettingsAndroid | 9:0 up to 9:2021-02-01, plus listed versions 9 | 9:2021-02-01 |
platform/packages/apps/SettingsAndroid | 10:0 up to 10:2021-02-01, plus listed versions 10 | 10:2021-02-01 |
platform/packages/apps/SettingsAndroid | 11:0 up to 11:2021-02-01, plus listed versions 11 | 11:2021-02-01 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | Satheesh575555/packages_apps_Settings_AOSP10_r33_CVE-2021-0331 | 2022-04-15 |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | OSV | |
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-0331 is a high vulnerability (CVSS 7.3) in Google Android, published February 1, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.29%, the 21st percentile. Fixed in platform/packages/apps/Settings 8.0:2021-02-01.