CVE-2026-28634: Elevation of privilege in Google Android
Description
In handleUssdRequest of PhoneInterfaceManager.java, there is a possible way to send a USSD request without permission 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 not needed for exploitation.
CVSS v3.1
Score 7.8high
Affected software
Android
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-28634 exists in the handleUssdRequest method within PhoneInterfaceManager.java in Google Android. Due to a logic error, it is possible to send a USSD request without having the necessary permission. This flaw enables a local attacker to escalate privileges on the device without needing extra execution privileges or user interaction. The CVSS v3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows a local attacker to escalate privileges on the affected Android device, potentially leading to full compromise of confidentiality, integrity, and availability of the system. No user interaction is required, increasing the risk of silent exploitation.
Mitigation Recommendations
No patch or official fix information is provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict local access to trusted users and monitor for suspicious activity related to USSD requests.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- google_android
- Date Reserved
- 2026-03-02T19:11:13.943Z
- State
- PUBLISHED
Threat ID: 6aa05612acd9273b490f5439
Added to database: 09/08/2026, 18:38:10 UTC
Last enriched: 09/16/2026, 01:51:59 UTC
Last updated: 10/23/2026, 15:10:12 UTC
Views: 48
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