Improper privilege management in Android
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-269.
Summary
In addAllPermissions of PermissionManagerService.java, there is a possible permissions bypass when upgrading major Android versions which allows an app to gain the android.permission.ACTIVITY_RECOGNITION permission without user confirmation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android; Versions: Android-11, Android-8.0, Android-8.1, Android-9, Android-10; Android ID: A-154505240.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Android | Android-11; Android-8.0; Android-8.1; Android-9; Android-10 | — | No fix listed | CNA |
- Android Vendor— Affected Android-11; Android-8.0; Android-8.1; Android-9; Android-10 Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:google:android:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | |
| cpe:2.3:o:google:android:8.1:*:*:*:*:*:*:* | 8.1 | Vulnerable | |
| cpe:2.3:o:google:android:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | |
| cpe:2.3:o:google:android:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | |
| cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:* | 11.0 | Vulnerable |
- cpe:2.3:o:google:android:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Google
- cpe:2.3:o:google:android:8.1:*:*:*:*:*:*:* Versions 8.1 Vulnerable ·Google
- cpe:2.3:o:google:android:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Google
- cpe:2.3:o:google:android:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Google
- cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Google
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-0306
- 2026-10-03 Alias added: GHSA-9hcw-xp2g-53qq
References
More Google Android vulnerabilities
- TI-2026-42236 Improper authorization in Google Android KEVCVSS 3.1HIGH 8.8
- TI-2025-30821 Use after free in Google Android KEVCVSS 3.1HIGH 8.8
- TI-2023-17777 Improper privilege management in Google Android KEVCVSS 3.1HIGH 8.8
- TI-2025-30872 Integer overflow in Google Android KEVCVSS 3.1HIGH 8.4
- TI-2024-21766 there is a possible way to bypass due to a logic error in the code. KEVCVSS 3.1HIGH 8.1
- TI-2025-30849 Missing authentication in Google Android KEVCVSS 3.1HIGH 7.8
Sources
- CVE-2021-0306 · CVE Program
- CVE-2021-0306 · NVD
- FIRST EPSS
- GHSA-9hcw-xp2g-53qq · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences