CVE-2026-40411 CRITICAL

CVE-2026-40411: Azure Virtual Network Gateway Remote Code Execution Vulnerability

Vendor Microsoft
Product Azure Virtual Network Gateway
Weakness CWE-20 · Input validation
Published May 22, 2026
Last update June 9, 2026
View on NVD All CVEs

CVSS base score

9.9/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C

What the vulnerability does

01Description

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

Key dates

02Disclosure timeline

May 22, 2026 CVE published
June 9, 2026 Record updated