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CVE-2026-40411

CRITICAL

9.9

CVSS 3.1

Metadata

CVE ID: CVE-2026-40411
State: PUBLISHED
Assigner: microsoft
Reserved: 2026-04-13 00:27 UTC
Published: 2026-05-22 22:03 UTC
Last updated: 2026-06-19 16:11 UTC
Primary CWE: CWE-20
CWE-20: Improper Input Validation
Vendor / Product: Microsoft / Azure Virtual Network Gateway
Sources: cve.org · NVD

Severity & Metrics

9.9 CRITICAL CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: none
Automatable: no
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
Microsoft	Azure Virtual Network Gateway	—	-

Weakness (CWE)

CWE	Source	Description
CWE-20	cna	CWE-20: Improper Input Validation

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.9	CRITICAL	3.1	cna	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

References (1)

Azure Virtual Network Gateway Remote Code Execution Vulnerability https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40411

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