CVE-2026-28636
Analyzed Analyzed - Analysis Complete

Possible Activity Bypass in Android Setup

Vulnerability report for CVE-2026-28636, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-09-08

Last updated on: 2026-09-15

Assigner: Android (associated with Google Inc. or Open Handset Alliance)

Description

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.

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-09-08
Last Modified
2026-09-15
Generated
2026-09-29
AI Q&A
2026-09-09
EPSS Evaluated
2026-09-27
NVD

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
google android 14.0
google android 15.0
google android 16.0
google android 16.0

Helpful Resources

Exploitability

CWE
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KEV
KEV Icon
CWE ID Description
CWE-441 The product receives a request, message, or directive from an upstream component, but the product does not sufficiently preserve the original source of the request before forwarding the request to an external actor that is outside of the product's control sphere. This causes the product to appear to be the source of the request, leading it to act as a proxy or other intermediary between the upstream component and the external actor.

Attack-Flow Graph

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Executive Summary

This vulnerability is in the Android system's PickActivity.java file. It allows a bypass of the 'Install unknown apps' security restriction due to a confused deputy issue. This could let an attacker escalate privileges locally without needing extra execution rights or user interaction.

Impact Analysis

An attacker could exploit this to install malicious apps on your device even if you have restricted unknown app installations. This could lead to data theft, spyware, or further compromise of your device without your knowledge.

Mitigation Strategies

Apply the latest Android security update to patch PickActivity.java and disable installation from unknown sources if not required.

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