CVE-2021-0963
In onCreate of KeyChainActivity.java, there is a possible way to use an app certificate stored in...
In onCreate of KeyChainActivity.java, there is a possible way to use an app certificate stored in keychain due to a tapjacking/overlay attack. 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-12 Android-9Android ID: A-199754277
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
In onCreate of KeyChainActivity.java, there is a possible way to use an app certificate stored in keychain due to a tapjacking/overlay attack. 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-12 Android-9Android ID: A-199754277
- Record
CVE-2021-0963- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N - CVSS 2.0
- 3.3 Low
AV:L/AC:M/Au:N/C:P/I:P/A:N - Weakness
- CWE-1021
- Updated
- 2026-11-02
CVE List No score
In onCreate of KeyChainActivity.java, there is a possible way to use an app certificate stored in keychain due to a tapjacking/overlay attack. 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-12 Android-9Android ID: A-199754277
- Record
CVE-2021-0963- Updated
- 2026-11-02
EUVDEUVD-2021-3582 No score
In onCreate of KeyChainActivity.java, there is a possible way to use an app certificate stored in keychain due to a tapjacking/overlay attack. 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-12 Android-9Android ID: A-199754277
- Record
EUVD-2021-3582- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-8gf6-jmpj-r5h7 No score
In onCreate of KeyChainActivity.java, there is a possible way to use an app certificate stored in...
In onCreate of KeyChainActivity.java, there is a possible way to use an app certificate stored in keychain due to a tapjacking/overlay attack. 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-12 Android-9Android ID: A-199754277
- Record
GHSA-8gf6-jmpj-r5h7- Weakness
- CWE-1021
- Updated
- 2026-11-02
OSVASB-A-199754277 No score
In onCreate of KeyChainActivity.java, there is a possible way to use an app certificate stored in keychain due to a tapjacking/overlay attack. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.
- Record
ASB-A-199754277- Updated
- 2026-11-05
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
platform/packages/apps/KeyChainAndroid |
9:0 up to 9:2021-12-01, plus listed versions 9 |
9:2021-12-01 |
platform/packages/apps/KeyChainAndroid |
10:0 up to 10:2021-12-01, plus listed versions 10 |
10:2021-12-01 |
platform/packages/apps/KeyChainAndroid |
11:0 up to 11:2021-12-01, plus listed versions 11 |
11:2021-12-01 |
platform/packages/apps/KeyChainAndroid |
12:0 up to 12:2021-12-01, plus listed versions 12 |
12:2021-12-01 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | Trinadh465/packages_apps_KeyChain_AOSP10_r33_CVE-2021-0963 | 2022-04-29 |
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-2021-0963 is a high vulnerability (CVSS 7.1) in Google Android, published December 1, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.20%, the 10th percentile. Fixed in platform/packages/apps/KeyChain 9:2021-12-01.