CVE-2025-32100
📋 TL;DR
A buffer overflow vulnerability in Samsung Exynos processors allows attackers to execute arbitrary code or cause denial of service via specially crafted ROHC packets. This affects Samsung mobile devices, wearables, and modems using the listed Exynos chipsets. The vulnerability requires network access to the affected device.
💻 Affected Systems
- Samsung Mobile Processor
- Samsung Wearable Processor
- Samsung Modem
- Exynos 980
- Exynos 990
- Exynos 850
- Exynos 1080
- Exynos 2100
- Exynos 1280
- Exynos 2200
- Exynos 1330
- Exynos 1380
- Exynos 1480
- Exynos 2400
- Exynos 1580
- Exynos 9110
- 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
Device crash/reboot (denial of service) or limited memory corruption affecting specific functions.
If Mitigated
No impact if patched or if network filtering blocks malicious ROHC packets.
🎯 Exploit Status
Exploitation requires crafting malformed ROHC packets and sending to vulnerable device. No authentication needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Device-specific security patches from Samsung
Vendor Advisory: https://semiconductor.samsung.com/support/quality-support/product-security-updates/cve-2025-32100/
Restart Required: Yes
Instructions:
1. Check for device security updates in Settings > Software Update. 2. Install latest security patch. 3. Reboot device after installation.
🔧 Temporary Workarounds
Network Filtering
allBlock or filter ROHC packets at network perimeter or on device firewall
Disable ROHC Compression
allDisable Robust Header Compression in network settings if not required
🧯 If You Can't Patch
- Segment affected devices on isolated network segments
- Implement strict network access controls and monitor for anomalous ROHC traffic
🔍 How to Verify
Check if Vulnerable:
Check device model and chipset in Settings > About Phone > Model/Processor. Compare with affected list.Check Version:
No single command - check via device settings interfaceVerify Fix Applied:
Check security patch level in Settings > About Phone > Software Information. Ensure date is after patch release.📡 Detection & Monitoring
Log Indicators:
- Unexpected device reboots
- Kernel panic logs
- Memory corruption errors
Network Indicators:
- Malformed ROHC packets
- Unusual ROHC traffic patterns
- Packets with abnormal header compression
SIEM Query:
Search for network traffic containing ROHC protocol anomalies or device crash events