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CVE-2025-59273— Azure Event Grid System Elevation of Privilege Vulnerability

Quick assessment

Affected
Microsoft Azure Event Grid System
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 Event Grid System是美国Microsoft公司的一个全托管事件路由服务系统。 Microsoft Azure Event Grid System存在访问控制错误漏洞，该漏洞源于访问控制不当，可能导致权限提升。

CVSS 7.3 · High EPSS 0.35% · P29
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I. Basic Information for CVE-2025-59273

Vulnerability Information
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Vulnerability Title
Azure Event Grid System Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Improper access control in Azure Event Grid allows an unauthorized attacker to elevate privileges over a network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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 Event Grid System 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Azure Event Grid System是美国Microsoft公司的一个全托管事件路由服务系统。 Microsoft Azure Event Grid System存在访问控制错误漏洞，该漏洞源于访问控制不当，可能导致权限提升。
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 Event Grid System - -

II. Public POCs for CVE-2025-59273

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III. Intelligence Information for CVE-2025-59273

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Same Patch Batch · Microsoft · 2025-10-23 · 3 CVEs total

CVE-2025-59503 10.0 CRITICAL Azure Compute Resource Provider Elevation of Privilege Vulnerability
CVE-2025-59500 7.7 HIGH Azure Notification Service Elevation of Privilege Vulnerability

IV. Related Vulnerabilities

Same vendor: Microsoft
Same weakness: CWE-284

V. Comments for CVE-2025-59273

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