CVE-2025-15548

N/A Unknown

📋 TL;DR

The TP-Link VX800v v1.0 web interface transmits sensitive information over unencrypted HTTP connections due to missing application layer encryption. This allows attackers on the same network to intercept and read this traffic, compromising confidentiality. Only users of this specific device model are affected.

💻 Affected Systems

Products:
  • TP-Link VX800v
Versions: v1.0
Operating Systems: Embedded firmware
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects the web interface endpoints transmitting sensitive data over HTTP

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers intercept administrative credentials, session tokens, or configuration data, leading to full device compromise and potential network infiltration.

🟠

Likely Case

Attackers capture sensitive information like login credentials or device settings, enabling unauthorized access to the web interface.

🟢

If Mitigated

With proper network segmentation and monitoring, impact is limited to potential information disclosure without lateral movement.

🌐 Internet-Facing: LOW (requires network adjacency, not directly internet exploitable)
🏢 Internal Only: HIGH (any attacker on the same network segment can intercept traffic)

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Exploitation requires network sniffing capabilities but no authentication or special tools

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check TP-Link firmware updates for VX800v

Vendor Advisory: https://www.tp-link.com/us/support/faq/4930/

Restart Required: Yes

Instructions:

1. Visit TP-Link support page for VX800v. 2. Download latest firmware. 3. Log into device web interface. 4. Navigate to System Tools > Firmware Upgrade. 5. Upload and install new firmware. 6. Reboot device.

🔧 Temporary Workarounds

Disable HTTP web interface

all

Force HTTPS-only access to the web interface

Network segmentation

all

Isolate VX800v device on separate VLAN to limit attack surface

🧯 If You Can't Patch

  • Segment device on isolated network with strict access controls
  • Monitor network traffic for sniffing attempts and implement IDS/IPS rules

🔍 How to Verify

Check if Vulnerable:

Check if web interface transmits sensitive data over HTTP by inspecting network traffic with tools like Wireshark

Check Version:

Log into web interface and check firmware version under System Tools > Firmware Upgrade

Verify Fix Applied:

Verify all web interface communication uses HTTPS and no sensitive data is transmitted over HTTP

📡 Detection & Monitoring

Log Indicators:

  • Multiple failed login attempts
  • Unusual access patterns to web interface

Network Indicators:

  • ARP spoofing attempts
  • Unusual traffic patterns to device IP
  • HTTP traffic containing sensitive keywords

SIEM Query:

source_ip=DEVICE_IP AND (protocol=HTTP AND (content="password" OR content="login" OR content="session"))

🔗 References

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