Sirius vs Vicarius vRx

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.

Vicarius vRx combines vulnerability management with patch management, patchless protection, and scripting to remediate security findings. It prioritizes vulnerabilities using exploitability and environment context, and discovers endpoints, servers, network devices, IoT, and containers through agent-based or agentless methods. The platform advertises automated patch deployment across more than 20,000 third-party applications and operating systems. When a patch is unavailable, vShield offers in-memory protection for vulnerable applications, including legacy and end-of-life systems. vScript runs custom, community, and AI-generated PowerShell, Bash, or Batch scripts across Windows, macOS, and Linux. vRx can ingest findings from connected scanners and EDR platforms, route suggested actions for approval, and revalidate fixes after execution. It maps findings and remediation to frameworks including HIPAA, PCI DSS, Cyber Essentials, and more than 100 CIS Benchmarks. Basic is listed at $4 a month and Essential at $5 a month, billed per asset; each covers 100 workstations and servers. Both list a 14-day free trial. Custom pricing is scope-based and not listed.