CVE-2025-49495
📋 TL;DR
A buffer overflow vulnerability in the WiFi driver of Samsung Exynos 1380, 1480, 2400, and 1580 mobile processors allows attackers to execute arbitrary code or cause denial of service. This affects Samsung mobile devices using these chipsets. Attackers can exploit this by sending specially crafted NL80211 vendor commands.
💻 Affected Systems
- Samsung mobile devices with Exynos 1380, 1480, 2400, or 1580 processors
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution with kernel privileges leading to complete device compromise, data theft, or persistent backdoor installation.
Likely Case
Device crash/reboot (denial of service) or limited code execution within WiFi driver context.
If Mitigated
Device remains functional but vulnerable to future exploitation attempts.
🎯 Exploit Status
Exploitation requires sending specific NL80211 vendor commands, which typically requires proximity to target device or network access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Samsung security updates for specific device models
Vendor Advisory: https://semiconductor.samsung.com/support/quality-support/product-security-updates/cve-2025-49495/
Restart Required: Yes
Instructions:
1. Check for Samsung security updates in device settings. 2. Install latest available update. 3. Reboot device after installation.
🔧 Temporary Workarounds
Disable WiFi
androidTurn off WiFi to prevent exploitation via this vector
adb shell svc wifi disable
Settings > Connections > WiFi > Turn off
Use mobile data only
allAvoid connecting to untrusted WiFi networks
🧯 If You Can't Patch
- Disable WiFi when not in use, especially in untrusted environments
- Use VPN when connecting to public WiFi networks to add encryption layer
🔍 How to Verify
Check if Vulnerable:
Check device processor model in Settings > About phone > Processor. If Exynos 1380/1480/2400/1580 and not patched, device is vulnerable.Check Version:
adb shell getprop ro.build.fingerprintVerify Fix Applied:
Check security patch level in Settings > About phone > Software information. Ensure latest Samsung security update is installed.📡 Detection & Monitoring
Log Indicators:
- Kernel panic logs
- WiFi driver crash messages
- Unexpected device reboots
Network Indicators:
- Unusual NL80211 vendor command patterns
- Malformed WiFi packets targeting Exynos devices
SIEM Query:
source="android_logs" AND ("kernel panic" OR "wifi driver" OR "exynos")