Microsoft Security Response CenterCVE-2026-40411

Azure Virtual Network Gateway Remote Code Execution Vulnerability

CriticalVendor CVSS 9.9 / 10 1 CVE Published May 21, 2026 at 7:00 AM UTC

Summary

Improper input validation in Azure Virtual Network Gateway allows an authorized attacker to execute code over a network.

Separate remediation guidance was not included in the collected bulletin.

May 21, 2026 at 7:00 AM UTC
Published by Microsoft Security Response Center
The publication date reported by the vendor.
Sep 27, 2026 at 11:11 PM UTC
Added to SecurityAlert
We collected the advisory from the official source.
Nov 7, 2026 at 7:05 AM UTC
Confirmed at the source
Our collector saw this advisory during a later source check.

Details collected from Microsoft Security Response Center.

Official bulletin How SecurityAlert builds this record

Your environment

A vendor advisory can tell you what may be affected. It cannot tell you whether that product and version are installed in your environment.

Watch Azure Virtual Network Gateway

Keep following

Use the vendor-specific RSS feed or set up alerts for a product your team relies on.

Follow this vendor's RSS feed