Analyzed
about 15 hours
ago.
based on code collected
about 18 hours
ago.
Project Summary
The ReactOS project is a ground-up implementation of a Microsoft Windows XP/2003 compatible operating system. ReactOS aims to achieve complete binary compatibility with both applications and device drivers meant for NT and XP operating systems, by using a similar architecture and providing a complete and equivalent public interface.
In a Nutshell, ReactOS...
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has a well established, mature codebase
maintained by a very large development team
with stable Y-O-Y commits -
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took an estimated 2,118 years of effort (COCOMO model)
starting with its first commit in January, 1996
ending with its most recent commit 3 days ago
Quick Reference
https://github.com/reactos/reactos
GNU General Public License v2.0
Permitted
Commercial Use
Modify
Distribute
Place Warranty
Forbidden
Sub-License
Hold Liable
Required
Distribute Original
Disclose Source
Include Copyright
State Changes
Include License
These details are provided for information only. No information here is legal advice and should not be used as such.
Project Security
Vulnerabilities per Version ( last 10 releases )
There are no reported vulnerabilities
Project Vulnerability Report
Security Confidence Index
Poor security track-record
Favorable security track-record
Vulnerability Exposure Index
Many reported vulnerabilities
Few reported vulnerabilities
Did You Know...
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in 2016, 47% of companies did not have formal process in place to track OS code
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anyone with an Open Hub account can update a project's tags
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nearly 1 in 3 companies have no process for identifying, tracking, or remediating known open source vulnerabilities
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30 Day SummaryJun 23 2026 — Jul 23 2026
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12 Month SummaryJul 23 2025 — Jul 23 2026
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