Permission bypass in Android dialInternal causes local escalation
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
Android versions 14, 15, 16, 16-qpr2 and 17 are affected by a permission bypass in dialInternal in multiple locations. The flaw is a confused deputy issue (CWE-441) in which a component acts on behalf of another party and skips the required permission checks. A local attacker needs no additional execution privileges and no user interaction to gain elevated privileges.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Description from the CNA
In dialInternal in multiple locations, there is a possible permission bypass due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Android | 17; 16-qpr2; 16; 15; 14 | — | No fix listed | CNA |
- Android VendorGoogle Affected 17; 16-qpr2; 16; 15; 14 Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:google:android:14.0:*:*:*:*:*:*:* | 14.0 | Vulnerable | |
| cpe:2.3:o:google:android:15.0:*:*:*:*:*:*:* | 15.0 | Vulnerable | |
| cpe:2.3:o:google:android:16.0:-:*:*:*:*:*:* | 16.0 | Vulnerable | |
| cpe:2.3:o:google:android:16.0:qpr2:*:*:*:*:*:* | 16.0 qpr2 | Vulnerable | |
| cpe:2.3:o:google:android:17.0:-:*:*:*:*:*:* | 17.0 | Vulnerable |
- cpe:2.3:o:google:android:14.0:*:*:*:*:*:*:* Versions 14.0 Vulnerable ·Google
- cpe:2.3:o:google:android:15.0:*:*:*:*:*:*:* Versions 15.0 Vulnerable ·Google
- cpe:2.3:o:google:android:16.0:-:*:*:*:*:*:* Versions 16.0 Vulnerable ·Google
- cpe:2.3:o:google:android:16.0:qpr2:*:*:*:*:*:* Versions 16.0 qpr2 Vulnerable ·Google
- cpe:2.3:o:google:android:17.0:-:*:*:*:*:*:* Versions 17.0 Vulnerable ·Google
Remediation
The sources list no fixed version for Android.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Timeline
- 2026-10-05 Threatist record created from CVE-2026-55270
- 2026-10-05 CVSS score added · CISA ADP
- 2026-10-05 CISA SSVC decision points changed
- 2026-10-06 Weakness changed · CISA ADP
- 2026-10-06 CISA SSVC decision points changed
- 2026-10-06 Alias added: GHSA-wgvh-pqcf-6fj4
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-2026-55270 · CVE Program
- CVE-2026-55270 · NVD
- FIRST EPSS
- GHSA-wgvh-pqcf-6fj4 · 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