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CVE-2026-26141— Hybrid Worker Extension (Arc‑enabled Windows VMs) Elevation of Privilege Vulnerability

Quick assessment

Affected
Microsoft Azure Automation Hybrid Worker Windows Extension
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 Arc是美国微软（Microsoft）公司的一个存储系统。可将Azure平台扩展到您的环境中。 Microsoft Azure Arc存在授权问题漏洞。攻击者利用该漏洞可以提升权限。

CVSS 7.8 · High EPSS 0.31% · P22

Possible ATT&CK Techniques 2 AI

T1078.004 · Cloud Accounts T1068.004

Affected Version Matrix 1

VendorProduct Version RangeStatus
Microsoft Azure Automation Hybrid Worker Windows Extension 1.0.0< 1.3.74 affected
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I. Basic Information for CVE-2026-26141

Vulnerability Information
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Vulnerability Title
Hybrid Worker Extension (Arc‑enabled Windows VMs) Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Improper authentication in Azure Arc allows an authorized attacker to elevate privileges locally.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Azure Arc 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Azure Arc是美国微软（Microsoft）公司的一个存储系统。可将Azure平台扩展到您的环境中。 Microsoft Azure Arc存在授权问题漏洞。攻击者利用该漏洞可以提升权限。
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)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Microsoft Azure Automation Hybrid Worker Windows Extension 1.0.0 ~ 1.3.74 -

II. Public POCs for CVE-2026-26141

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III. Intelligence Information for CVE-2026-26141

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Vendor Advisories for CVE-2026-26141 (1)

Same Patch Batch · Microsoft · 2026-03-10 · 78 CVEs total

CVE-2026-25177 8.8 HIGH Active Directory Domain Services Elevation of Privilege Vulnerability
CVE-2026-26106 8.8 HIGH Microsoft SharePoint Server Remote Code Execution Vulnerability
CVE-2026-26118 8.8 HIGH Azure MCP Server Tools Elevation of Privilege Vulnerability
CVE-2026-21262 8.8 HIGH SQL Server Elevation of Privilege Vulnerability
CVE-2026-23669 8.8 HIGH RPC Runtime Library Remote Code Execution Vulnerability
CVE-2026-23654 8.8 HIGH GitHub: Zero Shot SCFoundation Remote Code Execution Vulnerability
CVE-2026-26116 8.8 HIGH SQL Server Elevation of Privilege Vulnerability
CVE-2026-26115 8.8 HIGH SQL Server Elevation of Privilege Vulnerability
CVE-2026-24283 8.8 HIGH Multiple UNC Provider Kernel Driver Elevation of Privilege Vulnerability
CVE-2026-20967 8.8 HIGH System Center Operations Manager (SCOM) Elevation of Privilege Vulnerability
CVE-2026-26114 8.8 HIGH Microsoft SharePoint Server Remote Code Execution Vulnerability
CVE-2026-25188 8.8 HIGH Windows Telephony Service Elevation of Privilege Vulnerability
CVE-2026-26110 8.4 HIGH Microsoft Office Remote Code Execution Vulnerability
CVE-2026-26109 8.4 HIGH Microsoft Excel Remote Code Execution Vulnerability
CVE-2026-26113 8.4 HIGH Microsoft Office Remote Code Execution Vulnerability
CVE-2026-26105 8.1 HIGH Microsoft SharePoint Server Spoofing Vulnerability
CVE-2026-26148 8.1 HIGH Microsoft Azure AD SSH Login extension for Linux Elevation of Privilege Vulnerability
CVE-2026-25173 8.0 HIGH Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
CVE-2026-25172 8.0 HIGH Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
CVE-2026-26111 8.0 HIGH Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability

Showing top 20 of 78 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same vendor: Microsoft
Same weakness: CWE-287

V. Comments for CVE-2026-26141

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