Project Summary
msr-tools are utilities to access MSRs and CPU ID directly. Accessing any MSR or CPU ID with a simple console command is quite useful, especially when working on CPU related issues.
This project is composed of three different user space console applications.
rdmsr – read MSR from any CPU or all CPUs
wrmsr – write values to MSR on any CPU or all CPUs
cpuid – show identification and feature information of any CPU
In a Nutshell, msr-tools...
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took an estimated 1 years of effort (COCOMO model)
starting with its first commit in October, 2001
ending with its most recent commit over 3 years ago
Quick Reference
GNU General Public License v2.0
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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
Vulnerability Exposure Index
Did You Know...
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30 Day SummaryFeb 25 2026 — Mar 27 2026
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12 Month SummaryMar 27 2025 — Mar 27 2026
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