CVE-2026-56163

CRITICAL

Microsoft Azure Kubernetes Service Elevation of Privilege Vulnerability

Title source: cna

Description

Missing authentication for critical function in Microsoft Azure Kubernetes Service allows an unauthorized attacker to elevate privileges over a network.

References (1)

Core 1

Core References

Vendor Advisory vendor-advisory patch

Microsoft Azure Kubernetes Service Elevation of Privilege Vulnerability

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56163

Scores

CVSS v3 10.0

EPSS 0.0090

EPSS Percentile 56.1%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact total

Details

CWE

CWE-306

Status published

Products (2)

Microsoft/Azure Kubernetes Service -

microsoft/azure_kubernetes_service

Published Jul 24, 2026

Tracked Since Jul 24, 2026