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CVE-2026-33109— Azure Managed Instance for Apache Cassandra Remote Code Execution Vulnerability

Quick assessment

Affected
Microsoft Azure Managed Instance for Apache Cassandra
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Microsoft Azure Managed Instance for Apache Cassandra是美国微软（Microsoft）公司的一个适用于 Apache Cassandra 的 Azure 托管实例是一项服务。 Microsoft Azure Managed Instance for Apache Cassandra存在访问控制错误漏洞，该漏洞源于访问控制不当，可能导致授权攻击者通过网络执行代码。

CVSS 9.9 · Critical EPSS 0.78% · P54

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Microsoft Azure Managed Instance for Apache Cassandra - affected
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I. Basic Information for CVE-2026-33109

Vulnerability Information
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Vulnerability Title
Azure Managed Instance for Apache Cassandra Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Improper access control in Azure Managed Instance for Apache Cassandra allows an authorized attacker to execute code over a network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Azure Managed Instance for Apache Cassandra 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Azure Managed Instance for Apache Cassandra是美国微软（Microsoft）公司的一个适用于 Apache Cassandra 的 Azure 托管实例是一项服务。 Microsoft Azure Managed Instance for Apache Cassandra存在访问控制错误漏洞，该漏洞源于访问控制不当，可能导致授权攻击者通过网络执行代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Microsoft Azure Managed Instance for Apache Cassandra - -

II. Public POCs for CVE-2026-33109

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III. Intelligence Information for CVE-2026-33109

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Vendor Advisories for CVE-2026-33109 (1)

Same Patch Batch · Microsoft · 2026-05-07 · 12 CVEs total

CVE-2026-42826 10.0 CRITICAL Azure DevOps Information Disclosure Vulnerability
CVE-2026-33823 9.6 CRITICAL Microsoft Team Events Portal Information Disclosure Vulnerability
CVE-2026-35428 9.6 CRITICAL Azure Cloud Shell Spoofing Vulnerability
CVE-2026-33844 9.0 CRITICAL Azure Managed Instance for Apache Cassandra Remote Code Execution Vulnerability
CVE-2026-32207 8.8 HIGH Azure Machine Learning Notebook Spoofing Vulnerability
CVE-2026-35435 8.6 HIGH Azure AI Foundry Elevation of Privilege Vulnerability
CVE-2026-34327 8.2 HIGH Microsoft Partner Center Spoofing Vulnerability
CVE-2026-41105 8.1 HIGH Azure Monitor Action Group Notification System Elevation of Privilege Vulnerability
CVE-2026-26164 7.5 HIGH M365 Copilot Information Disclosure Vulnerability
CVE-2026-26129 7.5 HIGH M365 Copilot Information Disclosure Vulnerability
CVE-2026-33111 7.5 HIGH Copilot Chat (Microsoft Edge) Information Disclosure Vulnerability

IV. Related Vulnerabilities

Same product: Azure Managed Instance for Apache Cassandra
Same vendor: Microsoft
Same weakness: CWE-284

V. Comments for CVE-2026-33109

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