CVE-2023-20921
In onPackageRemoved of AccessibilityManagerService.java, there is a possibility to automatically...
In onPackageRemoved of AccessibilityManagerService.java, there is a possibility to automatically grant accessibility services due to a logic error in the code. 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-12L Android-13Android ID: A-243378132
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 onPackageRemoved of AccessibilityManagerService.java, there is a possibility to automatically grant accessibility services due to a logic error in the code. 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-12L Android-13Android ID: A-243378132
- Record
CVE-2023-20921- 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 - Weakness
- CWE-670
- Updated
- 2026-11-02
CVE List
In onPackageRemoved of AccessibilityManagerService.java, there is a possibility to automatically grant accessibility services due to a logic error in the code. 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-12L Android-13Android ID: A-243378132
- Record
CVE-2023-20921- 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 - Weakness
- CWE-670
- Updated
- 2026-11-02
EUVDEUVD-2023-25089
In onPackageRemoved of AccessibilityManagerService.java, there is a possibility to automatically grant accessibility services due to a logic error in the code. 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-12L Android-13Android ID: A-243378132
- Record
EUVD-2023-25089- 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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-xmpg-xcmw-jv5w
In onPackageRemoved of AccessibilityManagerService.java, there is a possibility to automatically...
In onPackageRemoved of AccessibilityManagerService.java, there is a possibility to automatically grant accessibility services due to a logic error in the code. 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-12L Android-13Android ID: A-243378132
- Record
GHSA-xmpg-xcmw-jv5w- 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 - Weakness
- CWE-670
- Updated
- 2026-11-02
OSVASB-A-243378132 No score
In onPackageRemoved of AccessibilityManagerService.java, there is a possibility to automatically grant accessibility services due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.
- Record
ASB-A-243378132- Updated
- 2026-11-10
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
platform/frameworks/baseAndroid |
10:0 up to 10:2023-01-01, plus listed versions 10 |
10:2023-01-01 |
platform/frameworks/baseAndroid |
11:0 up to 11:2023-01-01, plus listed versions 11 |
11:2023-01-01 |
platform/frameworks/baseAndroid |
12:0 up to 12:2023-01-01, plus listed versions 12 |
12:2023-01-01 |
platform/frameworks/baseAndroid |
12L:0 up to 12L:2023-01-01, plus listed versions 12L |
12L:2023-01-01 |
platform/frameworks/baseAndroid |
13:0 up to 13:2023-01-01, plus listed versions 13 |
13:2023-01-01 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | Trinadh465/frameworks_base_android-6.0.1_r22_CVE-2023-20921 | 2023-11-29 |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | OSV | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-20921 is a high vulnerability (CVSS 7.3) in Google Android, published January 1, 2023. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.28%, the 20th percentile. Fixed in platform/frameworks/base 10:2023-01-01.