ActivityManagerService Intent Redirection Bypass Vulnerability

Publication date: 2026-09-08

Last updated on: 2026-09-15

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

Description

In addCreatorToken of ActivityManagerService.java, there is a possible Intent Redirection Bypass 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 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

2026-09-10

EPSS Evaluated

2026-09-27

NVD

CVE-2026-28599

Affected Vendors & Products

Vendor	Product	Version / Range
google	android	16.0
google	android	16.0
google	android	17.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-693	The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

Attack-Flow Graph

Executive Summary

This vulnerability is an Intent Redirection Bypass in ActivityManagerService.java. It occurs due to a logic error that allows bypassing intended security checks. An attacker could exploit this to redirect intents, potentially leading to unauthorized actions or privilege escalation without needing additional permissions or user interaction.

Impact Analysis

This vulnerability could allow an attacker to perform actions on your device that they are not authorized to do. Since it requires no additional permissions or user interaction, it poses a risk for local privilege escalation, potentially enabling access to sensitive data or system functions.

Mitigation Strategies

Apply the latest Android security patches from your device manufacturer or Google. Monitor official Android security bulletins for updates related to ActivityManagerService and Intent handling. Disable unnecessary app permissions that may interact with ActivityManagerService.

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