Home Microsoft CVE-2026-26183
Back to Microsoft

CVE-2026-26183

Windows - RPC API

Microsoft CVSS 7.8 Updated April 16, 2026

Executive Risk Summary

"The CVE-2026-26183 vulnerability allows an authorized attacker to elevate privileges locally due to improper access control in the Windows RPC API. This could potentially lead to unauthorized access to sensitive data and system resources."

Anticipated Attack Path

  1. 1. Initial Exploitation: Authorized attacker gains access to the system
  2. 2. Privilege Escalation: Attacker exploits the vulnerability to elevate privileges
  3. 3. Post-Exploitation: Attacker gains access to sensitive system resources

Am I Vulnerable?

  • Verify the presence of the vulnerability in the Windows RPC API
  • Check for any suspicious activity related to privilege escalation
  • Review system logs for potential exploitation attempts

Operational Audit Arsenal

Target Type Windows Service
Target Asset rpcss.exe
Standard Path C:\Windows\system32\rpcss.exe
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: rpcss.exe (Windows Service)
$Targets = 'rpcss.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

Potential disruption to system services and applications using the RPC API

Internal Work Notes

CVE-2026-26183: Windows RPC API vulnerability allowing local privilege escalation. Apply patch and verify system integrity.

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.