CVE-2025-20618

7.9 HIGH

📋 TL;DR

A stack-based buffer overflow vulnerability in Intel PROSet/Wireless WiFi Software for Windows allows privileged local users to cause denial of service. This affects Windows systems with vulnerable Intel WiFi drivers installed before version 23.100. Attackers with local administrative access could crash the system.

💻 Affected Systems

Products:
  • Intel PROSet/Wireless WiFi Software for Windows
Versions: All versions before 23.100
Operating Systems: Windows
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects systems with Intel WiFi adapters and vulnerable driver versions installed.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Privileged attacker could execute arbitrary code with SYSTEM privileges, potentially leading to full system compromise and persistence.

🟠

Likely Case

Local denial of service through system crash or WiFi driver failure, requiring reboot to restore functionality.

🟢

If Mitigated

Limited to denial of service with proper privilege separation and network segmentation in place.

🌐 Internet-Facing: LOW - Requires local access and privileged credentials, not directly exploitable over network.
🏢 Internal Only: MEDIUM - Insider threat or compromised local account could exploit this to disrupt systems.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Requires local privileged access and knowledge of buffer overflow exploitation techniques.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 23.100 or later

Vendor Advisory: https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01270.html

Restart Required: Yes

Instructions:

1. Download Intel Driver & Support Assistant from Intel website
2. Run the tool to detect vulnerable drivers
3. Follow prompts to update to version 23.100 or later
4. Restart system after installation completes

🔧 Temporary Workarounds

Disable Intel WiFi Adapter

windows

Temporarily disable vulnerable Intel WiFi adapter to prevent exploitation

Device Manager > Network adapters > Right-click Intel WiFi adapter > Disable device

Use Alternative Network Interface

windows

Switch to Ethernet or different WiFi adapter until patch is applied

🧯 If You Can't Patch

  • Implement strict local privilege management to limit administrative access
  • Segment network to isolate vulnerable systems from critical assets

🔍 How to Verify

Check if Vulnerable:

Check driver version in Device Manager under Network adapters > Intel WiFi adapter > Driver tab

Check Version:

wmic path win32_pnpsigneddriver where "devicename like '%Intel%WiFi%'" get devicename, driverversion

Verify Fix Applied:

Confirm driver version is 23.100.0.0 or higher in Device Manager

📡 Detection & Monitoring

Log Indicators:

  • System crash logs (Event ID 41)
  • Driver failure events in Windows Event Log
  • Unexpected system reboots

Network Indicators:

  • Sudden loss of WiFi connectivity on affected systems
  • Unusual local privilege escalation attempts

SIEM Query:

EventID=41 OR (EventID=6008 AND Source="User32") | where DeviceName contains "Intel" and DeviceName contains "WiFi"

🔗 References

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