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CVE-2024-21357

Windows - Pragmatic General Multicast (PGM)

Microsoft CVSS 8.1 Updated March 14, 2026

Executive Risk Summary

"A remote code execution vulnerability exists in Windows Pragmatic General Multicast (PGM) due to improper handling of incoming packets, allowing attackers to execute arbitrary code. This vulnerability can be exploited by sending specially crafted packets to a vulnerable system, potentially leading to a complete compromise of the system."

Operational Audit Arsenal

Target Type DLL
Target Asset pgm.dll
Standard Path %windir%\System32
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: pgm.dll (DLL)
$Targets = 'pgm.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 Likely

Network services may be affected

Internal Work Notes

Apply latest Windows security updates to mitigate remote code execution vulnerability in PGM component

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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.