OpenVAS vs ShadowSecurityScanner

OPENVAS is a vulnerability scanner for identifying weaknesses in IT systems. It supports authenticated and unauthenticated testing across internet and industrial protocols, with performance tuning for large scans, and uses a vulnerability-test feed updated daily. The commercial OPENVAS SCAN product checks network services, servers, applications, container images, and authenticated endpoints for vulnerabilities, misconfigurations, and missing patches. It is offered as hardware or virtual appliances and can run entirely inside a customer's environment. Listed integrations include ServiceNow, Splunk, Nagios, Sourcefire, and CyberArk. OPENVAS FREE is a cross-platform virtual appliance intended for private use and non-professional IT infrastructures. It uses the Community Feed, cannot update itself, and lacks schedules, notifications, integrated backups, and air-gap support. The free edition has no default enterprise support, and its self-signed TLS certificate requires a browser exception. OPENVAS BASIC costs €2,524 a year; it excludes API access, sensors, remediation tickets, and Greenbone Support. OPENVAS SCAN pricing is by quote.

ShadowSecurityScanner is a free, open-source desktop tool for penetration testing and network vulnerability scanning on Windows, macOS, and Linux. It scans network hosts, servers, web applications, and network appliances using port checks, service and operating-system fingerprinting, and thousands of active security tests. Findings receive FIRST.org EPSS scores and are checked against the CISA Known Exploited Vulnerabilities catalog. Scan comparisons identify findings that are new, regressed, or resolved. Reports can be exported as PDF, HTML, SARIF, XML, or CSV, with SARIF described as suitable for GitHub code scanning. A signed update feed refreshes the audit catalog with daily CISA KEV updates, Nuclei, and curated advisories. The application runs locally, stores its database in the user profile, and has no cloud component or telemetry. It is distributed as one self-contained app, without agents or a database server. Listed requirements include Windows 10/11, macOS 11 or later on Apple Silicon, and Linux x64 or ARM64. Use is limited to authorized testing; denial-of-service tests are excluded.