CVE-2021-1013
In checkExistsAndEnforceCannotModifyImmutablyRestrictedPermission of PermissionManagerService...
In checkExistsAndEnforceCannotModifyImmutablyRestrictedPermission of PermissionManagerService.java, there is a possible way to determine whether an app is installed, without query permissions, due to side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-186404356
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
In checkExistsAndEnforceCannotModifyImmutablyRestrictedPermission of PermissionManagerService.java, there is a possible way to determine whether an app is installed, without query permissions, due to side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-186404356
- Record
CVE-2021-1013- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 2.1 Low
AV:L/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-203
- Updated
- 2026-11-02
CVE List No score
In checkExistsAndEnforceCannotModifyImmutablyRestrictedPermission of PermissionManagerService.java, there is a possible way to determine whether an app is installed, without query permissions, due to side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-186404356
- Record
CVE-2021-1013- Updated
- 2026-11-02
EUVDEUVD-2021-6480 No score
In checkExistsAndEnforceCannotModifyImmutablyRestrictedPermission of PermissionManagerService.java, there is a possible way to determine whether an app is installed, without query permissions, due to side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-186404356
- Record
EUVD-2021-6480- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-325x-phgw-f22w No score
In checkExistsAndEnforceCannotModifyImmutablyRestrictedPermission of PermissionManagerService...
In checkExistsAndEnforceCannotModifyImmutablyRestrictedPermission of PermissionManagerService.java, there is a possible way to determine whether an app is installed, without query permissions, due to side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-186404356
- Record
GHSA-325x-phgw-f22w- Weakness
- CWE-203
- Updated
- 2026-11-02
OSVPUB-A-186404356 No score
In checkExistsAndEnforceCannotModifyImmutablyRestrictedPermission of PermissionManagerService.java, there is a possible way to determine whether an app is installed, without query permissions, due to side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
- Record
PUB-A-186404356- Updated
- 2026-11-05
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
platform/frameworks/baseAndroid |
12:0 up to 12:2021-12-01, plus listed versions 12 |
12:2021-12-01 |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | OSV | |
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-1013 is a medium vulnerability (CVSS 5.5) in Google Android, published December 1, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.11%, the 1st percentile. Fixed in platform/frameworks/base 12:2021-12-01.