SunsetScan is a network auditing tool that scans local networks to identify active devices, fingerprint their software, and check against a comprehensive database of hardware lifecycle and vulnerability information from 224 vendors. It detects unsupported or end-of-life devices that may no longer receive security updates, helping users assess potential security risks. The tool produces clear HTML reports with explanations and remediation guidance. It operates entirely locally without modifying network devices or making external API calls. SunsetScan supports Linux and WSL2 environments, with partial macOS support, and is distributed via multiple installation methods including Debian packages and source installation. The hardware lifecycle database is extensive and licensed under CC BY-NC 4.0.

The tool helps identify devices on a network that no longer receive security updates, which could be vulnerable to known exploits if left unpatched. By detecting unsupported hardware, users can take informed actions to replace or isolate such devices, reducing the attack surface. SunsetScan itself does not introduce vulnerabilities or exploits; it is a security auditing utility. There are no known exploits or active threats associated with SunsetScan. The impact is primarily informational and preventative, enabling better network security posture through awareness of device lifecycle status.

No direct mitigation is required as SunsetScan is a security auditing tool, not a vulnerability or exploit. Users should run SunsetScan to identify unsupported devices and follow the tool's recommendations to update, replace, or secure those devices. Since the tool is open-source and read-only, it does not pose a security risk itself. Ensure to run it in supported environments (Linux or WSL2) for full functionality. Keep the hardware lifecycle database updated by running the tool's setup and update commands regularly.