Overview
The CVE-2025-46352 vulnerability pertains to the CS5000 Fire Panel, a critical safety device used in buildings and facilities worldwide. This device is found to have a hard-coded password, which runs on a VNC server and is visible as a string in the binary responsible for running VNC. The fact that this password is hard-coded and cannot be altered means that anyone with knowledge of it can gain remote access to the panel. Such unauthorized access has the potential to compromise the system, leak sensitive data, and in the worst-case scenario, render the fire panel non-functional, thereby posing serious safety issues.
Vulnerability Summary
CVE ID: CVE-2025-46352
Severity: Critical (9.8 CVSS)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise, data leakage, and safety risk.
Affected Products
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Product | Affected Versions
CS5000 Fire Panel | All versions
How the Exploit Works
The exploit takes advantage of the hard-coded password in the CS5000 Fire Panel. This password runs on a VNC server and is visible as a string in the binary responsible for running VNC. Since this password cannot be altered, anyone with knowledge of it can gain access to the panel remotely. This unauthorized access enables the attacker to operate the panel remotely, potentially rendering the fire panel non-functional and causing serious safety issues.
Conceptual Example Code
In the context of this vulnerability, an attacker might use a VNC client to connect to the server running on the CS5000 Fire Panel. The following is a conceptual example of an attack using a VNC client:
vncviewer target.example.com:5900Once connected, the attacker enters the hard-coded password that is visible in the binary running the VNC server. After gaining access, the attacker can then interact with the CS5000 Fire Panel, potentially compromising the system and posing serious safety risks.
Mitigation Guidance
The best mitigation for this vulnerability is to apply the vendor patch as soon as it becomes available. In the meantime, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used as temporary mitigation. These measures can help monitor and block suspicious activities or malicious traffic targeting the CS5000 Fire Panel.