Home Microsoft CVE-2009-1547
Back to Microsoft

CVE-2009-1547

Microsoft Internet Explorer - Browser Engine

Microsoft CVSS 8.8 Updated April 30, 2026

Executive Risk Summary

"A remote code execution vulnerability exists in Microsoft Internet Explorer due to a crafted data stream header that triggers memory corruption. This vulnerability allows an attacker to execute arbitrary code on the affected system, potentially leading to a complete compromise of the system."

Anticipated Attack Path

  1. 1. Initial Exploitation: Attacker crafts a malicious data stream header
  2. 2. Privilege Escalation: Arbitrary code execution on the affected system
  3. 3. Lateral Movement: Potential spread of malware or further exploitation

Am I Vulnerable?

  • Verify Internet Explorer version and patch level
  • Check for signs of exploitation or malicious activity
  • Apply MS09-054 patch to affected systems

Operational Audit Arsenal

Target Type Process
Target Asset iexplore.exe
Standard Path C:\Program Files\Internet Explorer\iexplore.exe
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: iexplore.exe (Process)
$Targets = 'iexplore.exe'
$SearchPaths = @("$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

Minimal to Moderate

Internal Work Notes

Apply MS09-054 patch to Internet Explorer to mitigate remote code execution vulnerability. Reboot required.

Technical Intelligence & Operational Utilities • Delivered Weekly

Intelligence Sources

Related Microsoft Threats

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