CVE-2025-47395
📋 TL;DR
This vulnerability allows an attacker to cause a temporary denial-of-service (DoS) condition by sending specially crafted WLAN management frames containing malformed Vendor Specific Information Elements. It affects wireless network devices using Qualcomm chipsets that process these frames.
💻 Affected Systems
- Qualcomm wireless chipsets and devices using them
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Persistent wireless network disruption requiring device reboot, potentially affecting multiple connected devices in range.
Likely Case
Temporary wireless connectivity loss for affected devices until the malformed frame processing completes or times out.
If Mitigated
Minimal impact with proper network segmentation and wireless intrusion prevention systems in place.
🎯 Exploit Status
Requires ability to craft and transmit specific WLAN management frames to target wireless interface.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Qualcomm January 2026 security bulletin for specific chipset firmware updates
Vendor Advisory: https://docs.qualcomm.com/product/publicresources/securitybulletin/january-2026-bulletin.html
Restart Required: Yes
Instructions:
1. Check device manufacturer for firmware updates. 2. Apply Qualcomm-provided firmware patches for affected chipsets. 3. Reboot device after patching.
🔧 Temporary Workarounds
Wireless Intrusion Prevention
allDeploy WIPS to detect and block malformed management frames
Network Segmentation
allIsolate wireless networks from critical infrastructure
🧯 If You Can't Patch
- Implement strict wireless access controls and monitoring
- Deploy wireless intrusion detection/prevention systems
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against Qualcomm's affected chipset list in advisoryCheck Version:
Device-specific - check wireless adapter/driver firmware version commandsVerify Fix Applied:
Verify firmware version has been updated to patched version from manufacturer📡 Detection & Monitoring
Log Indicators:
- Wireless driver crashes
- Unexpected wireless interface resets
- Management frame parsing errors
Network Indicators:
- Unusual Vendor Specific IE in management frames
- Spike in malformed frame transmissions
SIEM Query:
wireless AND (crash OR reset OR "management frame") AND severity:high