ManageEngine Vulnerability Manager Plus vs Sirius

ManageEngine Vulnerability Manager Plus identifies and assesses vulnerabilities across a network and helps teams prioritize and remediate them. Its risk prioritization uses AI-based scores, CVSS severity, EPSS and active attack trends. It includes out-of-the-box policies for more than 130 CIS benchmarks and supports downloading, testing and deploying patches across operating systems and more than 1,500 third-party applications. Pre-built, tested scripts can mitigate zero-day vulnerabilities. The product can discover network devices, scan firmware for vulnerabilities and remediate identified threats, but network-device management is on-premises only and requires extra licenses. Vulnerability Manager Plus supports Windows and Linux; macOS support is limited to patch management. It offers a free edition and a 30-day trial with unlimited endpoints. Listed annual prices include Professional On-Premises at $695 a year and Professional Cloud at $895 a year, each for 100 workstations and one technician. Enterprise options are listed at $1,195 a year on-premises and $1,545 a year in the cloud, on the same workstation and technician basis.

Sirius is an open-source vulnerability scanner for security teams that want operator control over discovery and triage. It combines network discovery, CVE detection, agent telemetry, and scanning through Nmap and Naabu. The Vulnerability Navigator provides severity groupings, CVSS-based filters, and export options; the Operator Console supports command execution, command history, and active-agent management. Dashboards show service health, infrastructure metrics, vulnerability trends, and centralized logs. Sirius can run in production or development mode through Docker Compose. Its listed minimum requirements are Docker Engine 20.10.0+ with Compose V2, 4 GB RAM, and 10 GB of free disk space. Supported host systems are Linux, macOS, and Windows through WSL2. REST endpoints on port 9001 use an API key, with documentation linking to an API reference and Go SDK. The Sirius Scan plan is free for self-hosted Docker use. Community support is available through Discord, GitHub Issues, and GitHub Discussions; the support page also describes enterprise priority support.