CVE-2026-20984: Galaxy Wearable Information Disclosure

CVE-2026-20984 Overview

CVE-2026-20984 is a medium-severity vulnerability affecting Samsung Galaxy Wearable application when installed on non-Samsung devices. The vulnerability stems from improper handling of insufficient permissions, which allows local attackers to access sensitive information stored or processed by the application.

Critical Impact

Local attackers can exploit improper permission handling to access sensitive user information on non-Samsung devices running Galaxy Wearable versions prior to 2.2.68.

Affected Products

• Samsung Galaxy Wearable application prior to version 2.2.68
• Non-Samsung Android devices running vulnerable Galaxy Wearable versions
• Users pairing Samsung wearable devices with third-party smartphones

Discovery Timeline

• February 4, 2026 - CVE-2026-20984 published to NVD
• February 4, 2026 - Last updated in NVD database

Technical Details for CVE-2026-20984

Vulnerability Analysis

This vulnerability is classified as an Improper Access Control issue specifically affecting the Samsung Galaxy Wearable application's permission handling mechanism on non-Samsung devices. The application fails to properly enforce permission checks when running on devices from other manufacturers, creating an inconsistent security posture between Samsung and non-Samsung environments.

The flaw allows local attackers—meaning those with physical access to the device or malicious applications installed on the same device—to bypass intended permission restrictions and access sensitive information. This could include personal health data, device configurations, notification content, and other information typically synchronized between wearable devices and smartphones.

The local attack vector requirement limits the exploitability somewhat, as attackers need either physical device access or the ability to execute code on the target device through another vector such as a malicious application.

Root Cause

The root cause of this vulnerability lies in the application's permission validation logic that fails to properly check and enforce security constraints when the app detects it is running on a non-Samsung device. This differential behavior suggests the permission framework relies on Samsung-specific security features or APIs that are not available on third-party devices, and the fallback handling does not implement adequate alternative protections.

Attack Vector

The attack requires local access to the target device. An attacker could exploit this vulnerability through a malicious application installed on the same device, which could then leverage the improper permission handling to extract sensitive data from the Galaxy Wearable application. Physical access scenarios could also enable direct exploitation through debugging interfaces or by installing attack tools.

The vulnerability mechanism involves bypassing the intended permission checks that should protect sensitive data access. When the Galaxy Wearable application runs on a non-Samsung device, certain permission validations are improperly handled, creating a window for unauthorized data access by local processes or applications.

Detection Methods for CVE-2026-20984

Indicators of Compromise

• Unusual data access patterns from applications targeting Galaxy Wearable storage or content providers
• Unexpected inter-process communication (IPC) requests to Galaxy Wearable components
• Anomalous permission usage by third-party applications attempting to access wearable-related data

Detection Strategies

• Monitor application logs for unauthorized access attempts to Galaxy Wearable data stores
• Implement mobile threat detection solutions to identify applications attempting privilege abuse
• Review installed application permissions and flag any suspicious permission combinations targeting sensitive data

Monitoring Recommendations

• Enable detailed logging for the Galaxy Wearable application if available
• Use mobile device management (MDM) solutions to track application versions and ensure timely updates
• Monitor for unusual battery drain or background activity that could indicate data exfiltration

How to Mitigate CVE-2026-20984

Immediate Actions Required

• Update Samsung Galaxy Wearable application to version 2.2.68 or later immediately
• Review installed applications for potentially malicious software that could exploit this vulnerability
• Consider temporarily unpairing wearable devices until the patch is applied on non-Samsung devices
• Enable automatic updates for the Galaxy Wearable application to receive future security patches

Patch Information

Samsung has released version 2.2.68 of the Galaxy Wearable application which addresses this vulnerability. Users should update through the Google Play Store or their device's application marketplace. The security advisory is available through the Samsung Mobile Security Advisory page.

Organizations managing mobile device fleets should prioritize pushing this update to all non-Samsung devices running the Galaxy Wearable application.

Workarounds

• Restrict physical access to affected devices until patching is complete
• Uninstall the Galaxy Wearable application on non-Samsung devices if not actively needed
• Use Samsung devices for Galaxy Wearable pairing where possible, as the vulnerability specifically affects non-Samsung devices
• Review and remove unnecessary applications to reduce the attack surface for local exploitation

# Verify Galaxy Wearable version on Android device
# Navigate to: Settings > Apps > Galaxy Wearable > App info
# Ensure version is 2.2.68 or higher

# Alternative: Check via ADB
adb shell dumpsys package com.samsung.android.app.watchmanager | grep versionName
# Expected output: versionName=2.2.68 (or higher)