CVE-2025-15462

8.8 HIGH

📋 TL;DR

A buffer overflow vulnerability in the UTT 进取 520W router firmware allows remote attackers to execute arbitrary code by exploiting the strcpy function in the ConfigAdvideo component. This affects version 1.7.7-180627 of the router firmware. Attackers can exploit this without authentication to potentially take full control of affected devices.

💻 Affected Systems

Products:
  • UTT 进取 520W router
Versions: 1.7.7-180627
Operating Systems: Embedded router firmware
Default Config Vulnerable: ⚠️ Yes
Notes: All devices running this specific firmware version are vulnerable by default.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution leading to complete device compromise, data theft, network infiltration, and use as a botnet node.

🟠

Likely Case

Remote code execution allowing attackers to modify router settings, intercept traffic, or launch attacks on internal networks.

🟢

If Mitigated

Limited impact if devices are behind firewalls with strict inbound filtering and network segmentation.

🌐 Internet-Facing: HIGH - The vulnerability is remotely exploitable without authentication and affects internet-facing routers.
🏢 Internal Only: MEDIUM - Internal routers could be exploited by attackers who have gained initial network access.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Proof-of-concept exploit code is publicly available, making exploitation straightforward for attackers.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: None available

Restart Required: Yes

Instructions:

No official patch available. Vendor did not respond to disclosure. Consider replacing affected devices with supported alternatives.

🔧 Temporary Workarounds

Network Segmentation

all

Isolate affected routers in separate network segments to limit potential damage.

Access Control Lists

all

Implement strict firewall rules to limit access to router management interfaces.

🧯 If You Can't Patch

  • Replace affected routers with supported devices from vendors that provide security updates
  • Implement network monitoring and intrusion detection specifically for router compromise indicators

🔍 How to Verify

Check if Vulnerable:

Check router firmware version via web interface or SSH. If version is 1.7.7-180627, device is vulnerable.

Check Version:

Check via router web interface at System Status or via SSH with 'show version' command

Verify Fix Applied:

No fix available to verify. Consider device replacement as primary remediation.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to /goform/ConfigAdvideo
  • Multiple failed authentication attempts followed by successful access
  • Unexpected configuration changes

Network Indicators:

  • Unusual outbound connections from router
  • Traffic patterns suggesting router compromise
  • Exploit attempts targeting router management interface

SIEM Query:

source="router_logs" AND (uri="/goform/ConfigAdvideo" OR message="buffer overflow" OR message="strcpy")

🔗 References

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