CVE-2026-28636

EUVD-2026-73978
In setupLayout of PickActivity.java, there is a possible bypass of the "Install unknown apps" security restriction 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.
Confused Deputy
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: 0.38%
Affected Products (NVD)
VendorProductVersion
googleandroid
14.0
googleandroid
15.0
googleandroid
16.0
googleandroid
16.0:qpr2
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://source.android.com/docs/security/bulletin/2026/2026-09-01