Improper Authentication in ActivityTaskManagerService

Executive Summary

This vulnerability is an improper authentication issue in ActivityTaskManagerService found in Samsung devices before the September 2026 Release 1 update. It allows local attackers with high privileges to launch arbitrary activities on the device.

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Detection Guidance

This vulnerability involves improper authentication in ActivityTaskManagerService, which may allow local privileged attackers to launch arbitrary activities. Detection would require checking for unauthorized activity launches or unusual system behavior. No specific commands are provided in the available context.

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Impact Analysis

A local privileged attacker could exploit this to execute unauthorized activities on your device, potentially leading to unauthorized access, data manipulation, or other malicious actions depending on the activity launched.

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Compliance Impact

The vulnerability allows local privileged attackers to bypass authentication, which could lead to unauthorized access to sensitive data or system functions. This may violate compliance requirements for data protection and access control in standards like GDPR and HIPAA, depending on the affected system's use case.

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Mitigation Strategies

Apply the SMR Sep-2026 Release 1 update or later to patch ActivityTaskManagerService. Ensure all Samsung devices are updated to the latest security firmware.

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