Improper authorization in Samsung Customization Service
Priority LOW 33CWE-285Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-285.
Summary
Using unsafe PendingIntent in Customization Service prior to version 2.2.02.1 in Android O(8.x), 2.4.03.0 in Android P(9.0), 2.7.02.1 in Android Q(10.0) and 2.9.01.1 in Android R(11.0) allows local attackers to perform unauthorized action without permission via hijacking the PendingIntent.
Why it matters now
EPSS 0.0022 12th percentileScored 2026-11-07
Fix Fixed Customization Service (Samsung Mobile): 2.2.02.1, 2.4.03.0, 2.7.02.1 +1
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 |
|---|---|---|---|---|---|
| Samsung | Customization Service | Android O(8.x) to before 2.2.02.1; Android P(9.0) to before 2.4.03.0; Android Q(10.0) to before 2.7.02.1; Android R(11.0) to before 2.9.01.1 | 2.2.02.1, 2.4.03.0, 2.7.02.1, 2.9.01.1 | Patch available | CNA |
- Customization Service VendorSamsung Affected Android O(8.x) to before 2.2.02.1; Android P(9.0) to before 2.4.03.0; Android Q(10.0) to before 2.7.02.1; Android R(11.0) to before 2.9.01.1 Fixed in 2.2.02.1, 2.4.03.0, 2.7.02.1, 2.9.01.1 Patch available CNA
CPE configurations NVD · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:samsung:customization_service:*:*:*:*:*:*:*:* | before 2.2.02.1 | Vulnerable | Samsung |
| cpe:2.3:o:google:android:8.0:*:*:*:*:*:*:* | 8.0 | Running on | |
| cpe:2.3:o:google:android:8.1:*:*:*:*:*:*:* | 8.1 | Running on | |
| cpe:2.3:a:samsung:customization_service:*:*:*:*:*:*:*:* | before 2.4.03.0 | Vulnerable | Samsung |
| cpe:2.3:o:google:android:9.0:*:*:*:*:*:*:* | 9.0 | Running on | |
| cpe:2.3:a:samsung:customization_service:*:*:*:*:*:*:*:* | before 2.7.02.1 | Vulnerable | Samsung |
| cpe:2.3:o:google:android:10.0:*:*:*:*:*:*:* | 10.0 | Running on | |
| cpe:2.3:a:samsung:customization_service:*:*:*:*:*:*:*:* | before 2.9.01.1 | Vulnerable | Samsung |
| cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:* | 11.0 | Running on |
- cpe:2.3:a:samsung:customization_service:*:*:*:*:*:*:*:* Versions before 2.2.02.1 Vulnerable ·Samsung
- cpe:2.3:o:google:android:8.0:*:*:*:*:*:*:* Versions 8.0 Running on ·Google
- cpe:2.3:o:google:android:8.1:*:*:*:*:*:*:* Versions 8.1 Running on ·Google
- cpe:2.3:a:samsung:customization_service:*:*:*:*:*:*:*:* Versions before 2.4.03.0 Vulnerable ·Samsung
- cpe:2.3:o:google:android:9.0:*:*:*:*:*:*:* Versions 9.0 Running on ·Google
- cpe:2.3:a:samsung:customization_service:*:*:*:*:*:*:*:* Versions before 2.7.02.1 Vulnerable ·Samsung
- cpe:2.3:o:google:android:10.0:*:*:*:*:*:*:* Versions 10.0 Running on ·Google
- cpe:2.3:a:samsung:customization_service:*:*:*:*:*:*:*:* Versions before 2.9.01.1 Vulnerable ·Samsung
- cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:* Versions 11.0 Running on ·Google
Remediation
- Fix · CNA Customization Service (Samsung Mobile) Fixed in 2.2.02.1, 2.4.03.0, 2.7.02.1, 2.9.01.1
Timeline
- 2026-10-02 Threatist record created from CVE-2021-25373
- 2026-10-03 Alias added: GHSA-8v94-2432-xc77
References
Sources
- CVE-2021-25373 · CVE Program
- CVE-2021-25373 · NVD
- FIRST EPSS
- GHSA-8v94-2432-xc77 · GitHub Advisory Database · CC BY 4.0
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