CVE-2026-20985

4.3 MEDIUM

📋 TL;DR

This vulnerability in Samsung Members app allows remote attackers to redirect users to arbitrary URLs and launch arbitrary activities with the app's privileges. Attackers can potentially execute code or access sensitive data when users interact with malicious content. All Samsung device users with vulnerable Samsung Members app versions are affected.

💻 Affected Systems

Products:
  • Samsung Members
Versions: All versions prior to 5.6.00.11
Operating Systems: Android (Samsung devices)
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects Samsung devices with Samsung Members app installed. User interaction required for exploitation.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete device compromise allowing data theft, surveillance, or ransomware deployment through privilege escalation.

🟠

Likely Case

Phishing attacks, data exfiltration, or installation of malicious apps through user redirection.

🟢

If Mitigated

Limited to phishing attempts or minor data leakage if app sandboxing prevents privilege escalation.

🌐 Internet-Facing: HIGH - Remote attackers can exploit this vulnerability over the internet when users interact with malicious content.
🏢 Internal Only: MEDIUM - Could be exploited internally through phishing or malicious links, but requires user interaction.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Exploitation requires user interaction (clicking malicious link). No authentication needed for initial access.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 5.6.00.11

Vendor Advisory: https://security.samsungmobile.com/serviceWeb.smsb?year=2026&month=02

Restart Required: No

Instructions:

1. Open Google Play Store on Samsung device. 2. Search for 'Samsung Members'. 3. Update to version 5.6.00.11 or later. 4. Alternatively, update through Samsung Galaxy Store if available.

🔧 Temporary Workarounds

Disable Samsung Members app

android

Temporarily disable the vulnerable app until patched

adb shell pm disable-user --user 0 com.samsung.android.voc

Restrict app permissions

android

Remove unnecessary permissions from Samsung Members app

adb shell pm revoke com.samsung.android.voc android.permission.INTERNET

🧯 If You Can't Patch

  • Educate users to avoid clicking unknown links in Samsung Members app
  • Implement network filtering to block suspicious URLs and domains

🔍 How to Verify

Check if Vulnerable:

Check Samsung Members app version in Settings > Apps > Samsung Members > App info

Check Version:

adb shell dumpsys package com.samsung.android.voc | grep versionName

Verify Fix Applied:

Confirm Samsung Members version is 5.6.00.11 or higher

📡 Detection & Monitoring

Log Indicators:

  • Unusual URL launches from Samsung Members app
  • Suspicious activity intents from com.samsung.android.voc

Network Indicators:

  • Unexpected outbound connections from Samsung Members to unusual domains
  • Redirects to suspicious URLs

SIEM Query:

source="android_logs" app="com.samsung.android.voc" (url_launch OR intent_start) suspicious_domain=*

🔗 References

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