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CRITICAL: THIS VULNERABILITY IS ACTIVELY BEING EXPLOITED IN THE WILD (CISA KEV CATALOG)
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CVE-2017-0146

Exploited

Microsoft Windows - SMBv1 Server

Microsoft CVSS 8.8 Updated April 30, 2026

Executive Risk Summary

"The SMBv1 server in Microsoft Windows is vulnerable to remote code execution via crafted packets, allowing attackers to execute arbitrary code. This vulnerability can be exploited by sending specially crafted packets to the SMBv1 server, potentially leading to a complete compromise of the system."

Anticipated Attack Path

  1. 1. Initial Exploitation: Attacker sends crafted packets to the SMBv1 server
  2. 2. Privilege Escalation: Exploited code executes with elevated privileges
  3. 3. Lateral Movement: Attacker gains access to the system and potentially spreads to other systems

Am I Vulnerable?

  • Verify if SMBv1 is enabled on the system
  • Check for any suspicious network activity related to SMBv1
  • Apply the latest security patches to the system

Operational Audit Arsenal

Target Type Service
Target Asset srvsvc
Standard Path Windows System Services
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: srvsvc (Service)
$Targets = 'srvsvc'
$SearchPaths = @("$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

Potential disruption to file and printer sharing services

Internal Work Notes

CVE-2017-0146: Windows SMB Remote Code Execution Vulnerability - Apply security patches to prevent remote code execution via SMBv1 server

Technical Intelligence & Operational Utilities • Delivered Weekly

Intelligence Sources

Official Advisoryhttp://packetstormsecurity.com/files/154690/DOUBLEPULSAR-Payload-Execution-Neutralization.html
Official Advisoryhttp://packetstormsecurity.com/files/156196/SMB-DOUBLEPULSAR-Remote-Code-Execution.html
Official Advisoryhttp://www.securityfocus.com/bid/96707
Official Advisoryhttp://www.securitytracker.com/id/1037991
Official Advisoryhttps://cert-portal.siemens.com/productcert/pdf/ssa-701903.pdf
Official Advisoryhttps://cert-portal.siemens.com/productcert/pdf/ssa-966341.pdf
Official Advisoryhttps://ics-cert.us-cert.gov/advisories/ICSMA-18-058-02
MSRC Advisoryhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0146
Official Advisoryhttps://www.exploit-db.com/exploits/41891/
Official Advisoryhttps://www.exploit-db.com/exploits/41987/
Official Advisoryhttps://www.exploit-db.com/exploits/43970/
Official Advisoryhttp://packetstormsecurity.com/files/154690/DOUBLEPULSAR-Payload-Execution-Neutralization.html
Official Advisoryhttp://packetstormsecurity.com/files/156196/SMB-DOUBLEPULSAR-Remote-Code-Execution.html
Official Advisoryhttp://www.securityfocus.com/bid/96707
Official Advisoryhttp://www.securitytracker.com/id/1037991
Official Advisoryhttps://cert-portal.siemens.com/productcert/pdf/ssa-701903.pdf
Official Advisoryhttps://cert-portal.siemens.com/productcert/pdf/ssa-966341.pdf
Official Advisoryhttps://ics-cert.us-cert.gov/advisories/ICSMA-18-058-02
MSRC Advisoryhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0146
Official Advisoryhttps://www.exploit-db.com/exploits/41891/
Official Advisoryhttps://www.exploit-db.com/exploits/41987/
Official Advisoryhttps://www.exploit-db.com/exploits/43970/
Official Advisoryhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-0146

Related Microsoft Threats

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