CVE-2025-53965
📋 TL;DR
A buffer overflow vulnerability in Samsung Exynos processors allows attackers to cause a fatal error by sending malformed SOR transparent container data. This affects Samsung mobile devices, wearables, and modems using the listed Exynos chips. The vulnerability can lead to denial of service or potentially arbitrary code execution.
💻 Affected Systems
- Samsung Mobile Processor
- Samsung Wearable Processor
- Samsung Modem
- Exynos 980
- Exynos 990
- Exynos 850
- Exynos 2100
- Exynos 1280
- Exynos 2200
- Exynos 1330
- Exynos 1380
- Exynos 1480
- Exynos 2400
- Exynos 1580
- Exynos 2500
- Exynos W920
- Exynos W930
- Exynos W1000
- Modem 5123
- Modem 5300
- Modem 5400
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete device compromise, data theft, or persistent backdoor installation.
Likely Case
Denial of service causing device crashes, reboots, or instability when processing malicious SOR containers.
If Mitigated
Limited impact with proper network segmentation and input validation, potentially causing only temporary service disruption.
🎯 Exploit Status
Exploitation requires sending specially crafted SOR transparent container data to the vulnerable function. No public exploits available at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Samsung security updates for specific device/OS versions
Vendor Advisory: https://semiconductor.samsung.com/support/quality-support/product-security-updates/cve-2025-53965/
Restart Required: Yes
Instructions:
1. Check for security updates in device settings. 2. Apply available firmware updates from Samsung. 3. For enterprise devices, use MDM to push updates. 4. Restart device after update installation.
🔧 Temporary Workarounds
Network segmentation
allIsolate affected devices from untrusted networks to prevent malicious SOR container delivery
Input validation at application layer
allImplement additional validation for SOR container data before passing to vulnerable function
🧯 If You Can't Patch
- Segment affected devices in isolated network zones
- Monitor for abnormal device behavior or crashes
🔍 How to Verify
Check if Vulnerable:
Check device model and chipset in settings > about phone. If using listed Exynos chips, assume vulnerable until patched.Check Version:
adb shell getprop ro.build.fingerprint (for Android devices)Verify Fix Applied:
Check security patch level in settings > about phone > software information. Verify latest Samsung security updates are installed.📡 Detection & Monitoring
Log Indicators:
- Device crash logs
- Kernel panic logs
- Unexpected reboots
- SOR container processing errors
Network Indicators:
- Unusual SOR container traffic patterns
- Malformed protocol packets
SIEM Query:
source="device_logs" AND (event_type="crash" OR event_type="reboot") AND device_chipset="Exynos"