CVE-2026-28634

EUVD-2026-73977
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 0.85%
Affected Products (NVD)
VendorProductVersion
googleandroid
14.0
googleandroid
15.0
googleandroid
16.0
googleandroid
16.0:qpr2
googleandroid
17.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://source.android.com/docs/security/bulletin/2026/2026-09-01