CVE-2025-25522
📋 TL;DR
A buffer overflow vulnerability in Linksys WAP610N wireless access points allows remote attackers to execute arbitrary code by exploiting improper input validation in time setting operations. This affects all users running vulnerable firmware versions, potentially giving attackers full control of the device.
💻 Affected Systems
- Linksys WAP610N
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the wireless access point, allowing attackers to intercept network traffic, pivot to internal networks, or use the device as a botnet node.
Likely Case
Remote code execution leading to device takeover, network disruption, or credential theft from connected clients.
If Mitigated
Limited impact if device is behind firewall with restricted management interface access.
🎯 Exploit Status
Exploitation requires crafting specific time setting requests but no authentication is needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Linksys for latest firmware
Vendor Advisory: https://www.linksys.com/support/
Restart Required: Yes
Instructions:
1. Log into Linksys WAP610N web interface. 2. Navigate to Administration > Firmware Upgrade. 3. Download latest firmware from Linksys support site. 4. Upload and apply firmware update. 5. Reboot device after update completes.
🔧 Temporary Workarounds
Restrict Management Interface Access
allLimit access to the device's management interface to trusted IP addresses only.
Disable Remote Management
allTurn off remote management features if not required.
🧯 If You Can't Patch
- Segment device on isolated network VLAN
- Implement strict firewall rules blocking all inbound access to device management ports
🔍 How to Verify
Check if Vulnerable:
Check firmware version in web interface under Status > Router InformationCheck Version:
No CLI command - check via web interface at Status > Router InformationVerify Fix Applied:
Confirm firmware version is newer than v1.0.05.002 after update📡 Detection & Monitoring
Log Indicators:
- Multiple failed time setting requests
- Unusual POST requests to time configuration endpoints
Network Indicators:
- Exploit traffic patterns to port 80/443 with crafted time parameters
SIEM Query:
source_ip=* dest_ip=[device_ip] (http_method=POST AND uri_contains="time" OR "setting")