CVE-2026-56163: CWE-306: Missing Authentication for Critical Function in Microsoft Azure Kubernetes Service
Missing authentication for critical function in Microsoft Azure Kubernetes Service allows an unauthorized attacker to elevate privileges over a network.
AI Analysis
Technical Summary
The vulnerability identified as CVE-2026-56163 in Microsoft Azure Kubernetes Service involves missing authentication for a critical function, enabling an attacker without privileges to elevate their access over the network. The CVSS 3.1 vector indicates network attack vector, low attack complexity, no privileges required, no user interaction, scope change, and high impact on confidentiality, integrity, and availability. As this is a cloud service, Microsoft manages the remediation and has released an official fix.
Potential Impact
An attacker can exploit this vulnerability remotely without any privileges or user interaction to gain elevated privileges, potentially compromising the confidentiality, integrity, and availability of the Azure Kubernetes Service environment.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. As this is a cloud-hosted service, Microsoft manages the remediation server-side. Users should refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56163 for confirmation and ensure their Azure Kubernetes Service instances are updated accordingly.
CVE-2026-56163: CWE-306: Missing Authentication for Critical Function in Microsoft Azure Kubernetes Service
Description
Missing authentication for critical function in Microsoft Azure Kubernetes Service allows an unauthorized attacker to elevate privileges over a network.
CVSS v3.1
Score 10.0critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability identified as CVE-2026-56163 in Microsoft Azure Kubernetes Service involves missing authentication for a critical function, enabling an attacker without privileges to elevate their access over the network. The CVSS 3.1 vector indicates network attack vector, low attack complexity, no privileges required, no user interaction, scope change, and high impact on confidentiality, integrity, and availability. As this is a cloud service, Microsoft manages the remediation and has released an official fix.
Potential Impact
An attacker can exploit this vulnerability remotely without any privileges or user interaction to gain elevated privileges, potentially compromising the confidentiality, integrity, and availability of the Azure Kubernetes Service environment.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. As this is a cloud-hosted service, Microsoft manages the remediation server-side. Users should refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56163 for confirmation and ensure their Azure Kubernetes Service instances are updated accordingly.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-19T13:53:31.988Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Is Cloud Service
- true
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56163","vendor":"Microsoft"}]
Threat ID: 6a637ff99c2644c7f8203e1c
Added to database: 07/24/2026, 15:08:41 UTC
Last enriched: 07/24/2026, 15:22:19 UTC
Last updated: 07/25/2026, 01:41:37 UTC
Views: 9
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