Remote Code Execution Vulnerability in Azure Virtual Network Gateway by Microsoft
CVE-2026-40411

9.9CRITICAL

Key Information:

Vendor

Microsoft
Status
Azure Virtual Network Gateway
Vendor
CVE Published:
22 May 2026

What is CVE-2026-40411?

A remote code execution vulnerability exists in Azure Virtual Network Gateway due to improper input validation. An attacker with authorized access can exploit this flaw to execute arbitrary code over the network, potentially compromising sensitive data and network operations. Organizations using this product should take immediate action to apply relevant patches to mitigate risks.

Affected Version(s)

Azure Virtual Network Gateway -

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
9.9
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.