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CVE-2026-40379— Azure Entra ID Spoofing Vulnerability

CVSS 9.3 · Critical EPSS 0.06% · P20

Affected Version Matrix 1

VendorProductVersion RangeStatus
MicrosoftMicrosoft Entra-affected
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I. Basic Information for CVE-2026-40379

Vulnerability Information
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Vulnerability Title
Azure Entra ID Spoofing Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Exposure of sensitive information to an unauthorized actor in Azure Entra ID allows an unauthorized attacker to perform spoofing over a network.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Microsoft Azure Entra ID 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Azure Entra ID是美国Microsoft公司的一个基于云的身份和访问管理服务。 Microsoft Azure Entra ID存在安全漏洞，该漏洞源于混合身份同步缺陷。
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

VendorProductAffected VersionsCPESubscribe
MicrosoftMicrosoft Entra - -

II. Public POCs for CVE-2026-40379

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III. Intelligence Information for CVE-2026-40379

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Same Patch Batch · Microsoft · 2026-05-12 · 125 CVEs total

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Showing top 20 of 125 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Microsoft Entra
Same vendor: Microsoft
Same weakness: CWE-200

V. Comments for CVE-2026-40379

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