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CVE-2024-27308

Tokio - Mio library

Microsoft CVSS 7.5 Updated March 14, 2026

Executive Risk Summary

"A vulnerability in the Mio library for Rust can cause invalid tokens to be returned, potentially leading to a use-after-free vulnerability in certain applications, including Tokio. The vulnerability is specific to Windows and only affects applications using named pipes with vulnerable versions of Mio and Tokio."

Operational Audit Arsenal

Target Type DLL
Target Asset mio.dll
Standard Path %windir%\System32
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: mio.dll (DLL)
$Targets = 'mio.dll'
$SearchPaths = @("$env:windir\System32", "$env:ProgramFiles", "${env:ProgramFiles(x86)}")

Get-ChildItem -Path $SearchPaths -Include $Targets -Recurse -ErrorAction SilentlyContinue | 
Select-Object FullName, @{Name="Version";Expression={$_.VersionInfo.ProductVersion}}

Patch Impact Forecast

Reboot Required Unlikely

Tokio service

Internal Work Notes

Mio library vulnerability in Tokio may cause use-after-free, update to mio v0.8.11 or later to mitigate

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Intelligence Sources

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Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.