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Vulnerability details

CVE-2026-40411

Microsoft Azure Virtual Network Gateway

Azure Virtual Network Gateway Remote Code Execution Vulnerability

CVSS 3.1
9.9Critical

Official description

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

CVSS scores

ScoreVersionSourceVector
9.9Critical 3.1 CVEProject cvelistV5 (CNA) (microsoft) 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

Affected products

VendorProductVersionsSource
Microsoft Azure Virtual Network Gateway All CVEProject cvelistV5 (CNA)

References and advisories

1
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Details

Published
2026-05-23
Last updated
2026-08-10
State
Published
Assigner (CNA)
microsoft

Exploit prediction (EPSS)

0.52%
Probability of exploitation in 30 days
44.6%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
No
Exploitation
None
Technical impact
Total

Weaknesses (CWE)

  • CWE-20
    Improper Input Validation