CVE-2025-21079
📋 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 when users interact with malicious content. It affects Samsung device users running Samsung Members versions prior to 5.5.01.3.
💻 Affected Systems
- Samsung Members
📦 What is this software?
Members by Samsung
⚠️ Risk & Real-World Impact
Worst Case
Attackers could execute arbitrary code with Samsung Members app privileges, potentially leading to data theft, device takeover, or installation of malware.
Likely Case
Attackers redirect users to phishing sites or malicious apps, potentially stealing credentials or personal information through social engineering.
If Mitigated
Limited to app-specific data exposure or minor privacy violations if proper app sandboxing and permissions are enforced.
🎯 Exploit Status
Requires user interaction (clicking malicious link). Exploitation likely involves crafted URLs or app intents.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 5.5.01.3
Vendor Advisory: https://security.samsungmobile.com/serviceWeb.smsb?year=2025&month=11
Restart Required: No
Instructions:
1. Open Google Play Store on Samsung device. 2. Search for 'Samsung Members'. 3. If update available, tap 'Update'. 4. Alternatively, update through Galaxy Store if pre-installed.
🔧 Temporary Workarounds
Disable Samsung Members app
androidTemporarily disable the vulnerable app until patched
adb shell pm disable-user --user 0 com.samsung.android.voc
Restrict app permissions
androidLimit Samsung Members app permissions to minimum required
🧯 If You Can't Patch
- Educate users not to click unknown links in Samsung Members app
- Deploy mobile threat defense solution to detect malicious URL redirects
🔍 How to Verify
Check if Vulnerable:
Check Samsung Members app version in device settings > Apps > Samsung Members > App infoCheck Version:
adb shell dumpsys package com.samsung.android.voc | grep versionNameVerify Fix Applied:
Verify Samsung Members version is 5.5.01.3 or higher📡 Detection & Monitoring
Log Indicators:
- Unusual URL launches from Samsung Members app
- Intent launches to unexpected packages
Network Indicators:
- Unexpected outbound connections from Samsung Members to unusual domains
SIEM Query:
source="android" app="Samsung Members" (event="url_launch" OR event="intent_start") url NOT IN allowed_urls_list