Analyzed
1 day
ago.
based on code collected
2 days
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 2,266 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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there are over 3,000 projects on the Open Hub with security vulnerabilities reported against them
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learn about Open Hub updates and features on the Open Hub blog
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use of OSS increased in 65% of companies in 2016
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30 Day SummarySep 27 2026 — Oct 27 2026
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12 Month SummaryOct 27 2025 — Oct 27 2026
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