CVE-2025-61612
📋 TL;DR
This vulnerability in nr modem allows remote attackers to cause a system crash through improper input validation, leading to denial of service without requiring any privileges. It affects systems using vulnerable nr modem implementations, potentially impacting telecommunications infrastructure and connected devices.
💻 Affected Systems
- Unisoc nr modem implementations
📦 What is this software?
Android by Google
Android by Google
Android by Google
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Complete system crash leading to sustained denial of service for all connected services, potentially affecting critical telecommunications infrastructure.
Likely Case
Temporary service disruption causing dropped connections and degraded network performance until system restart.
If Mitigated
Minimal impact with proper network segmentation and input validation controls in place.
🎯 Exploit Status
No authentication required, but specific attack vectors not detailed in public advisory.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific patched versions
Vendor Advisory: https://www.unisoc.com/en/support/announcement/2030931350138310657
Restart Required: Yes
Instructions:
1. Review vendor advisory for affected products. 2. Apply vendor-provided firmware/software updates. 3. Restart affected systems. 4. Verify patch application.
🔧 Temporary Workarounds
Network Segmentation
allIsolate nr modem systems from untrusted networks
Input Validation Filtering
allImplement network-level input validation for nr modem traffic
🧯 If You Can't Patch
- Implement strict network access controls to limit exposure
- Monitor for abnormal system crashes and restart patterns
🔍 How to Verify
Check if Vulnerable:
Check system firmware/software version against vendor advisory list of affected versionsCheck Version:
Vendor-specific command - consult device documentationVerify Fix Applied:
Verify applied patch version matches or exceeds vendor's recommended version📡 Detection & Monitoring
Log Indicators:
- Unexpected system crashes
- Abnormal modem restart patterns
- Invalid input rejection logs
Network Indicators:
- Unusual traffic patterns to modem interfaces
- Malformed packets targeting modem ports
SIEM Query:
Search for system crash events or service restarts on devices with nr modem functionality