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

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Microsoft Azure Virtual Network Gateway affected
Version Status Constraints
- affected —

No data.

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Project Subscriptions

Vendors Products
Microsoft Subscribe
Azure Virtual Network Gateway Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40411 cve-icon
History

Fri, 22 May 2026 22:30:00 +0000

Type Values Removed Values Added
Description Improper input validation in Azure Virtual Network Gateway allows an authorized attacker to execute code over a network.
Title Azure Virtual Network Gateway Remote Code Execution Vulnerability
First Time appeared Microsoft
Microsoft azure Virtual Network Gateway
Weaknesses CWE-20
CPEs cpe:2.3:a:microsoft:azure_virtual_network_gateway:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft azure Virtual Network Gateway
References
Metrics cvssV3_1

{'score': 9.9, '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-05-22T22:03:06.684Z

Reserved: 2026-04-13T00:27:50.798Z

Link: CVE-2026-40411

cve-icon Vulnrichment

No data.

cve-icon NVD

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cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses