CVE-2025-58455
📋 TL;DR
A heap-based buffer overflow vulnerability in TP-Link Archer AX53 v1.0 routers allows authenticated attackers on the same network to crash the device or potentially execute arbitrary code by sending specially crafted network packets. This affects the tmpserver modules in firmware versions through 1.3.1 Build 20241120. Attackers must be authenticated and adjacent to the network.
💻 Affected Systems
- TP-Link Archer AX53 v1.0
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to full device compromise, persistent backdoor installation, and lateral movement to other network devices.
Likely Case
Denial of service through segmentation fault causing router reboot and network disruption.
If Mitigated
Limited to denial of service if exploit attempts are detected and blocked by network monitoring.
🎯 Exploit Status
Requires authentication and network adjacency. Heap exploitation adds complexity but buffer overflow is straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check TP-Link support site for firmware newer than 1.3.1 Build 20241120
Vendor Advisory: https://www.tp-link.com/en/support/faq/4943/
Restart Required: Yes
Instructions:
1. Visit TP-Link support page for Archer AX53 v1.0. 2. Download latest firmware. 3. Log into router admin interface. 4. Navigate to System Tools > Firmware Upgrade. 5. Upload and install new firmware. 6. Router will reboot automatically.
🔧 Temporary Workarounds
Network Segmentation
allIsolate router management interface to separate VLAN to limit adjacent attack surface
Access Control
allRestrict administrative access to trusted IP addresses only
🧯 If You Can't Patch
- Disable remote management and limit administrative access to wired connections only
- Implement network monitoring for unusual tmpserver traffic patterns
🔍 How to Verify
Check if Vulnerable:
Check firmware version in router web interface under System Tools > Firmware UpgradeCheck Version:
Not applicable - check via web interfaceVerify Fix Applied:
Confirm firmware version is newer than 1.3.1 Build 20241120📡 Detection & Monitoring
Log Indicators:
- Repeated segmentation faults in system logs
- tmpserver process crashes
Network Indicators:
- Unusually large network packets to router management interface
- Multiple failed authentication attempts followed by large packets
SIEM Query:
Not applicable - proprietary device logging