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CVE-2026-26123— Microsoft Authenticator Information Disclosure Vulnerability

Quick assessment

Affected
Microsoft Microsoft Authenticator for Android
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 Authenticator是美国微软（Microsoft）公司的一款用于多因素身份验证（MFA）的应用程序。 Microsoft Authenticator存在安全漏洞。攻击者利用该漏洞可以获取敏感信息。以下产品和版本受到影响：Microsoft Authenticator for Android,Microsoft Authenticator for IOS。

CVSS 5.5 · Medium EPSS 0.54% · P43

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System

Affected Version Matrix 2

VendorProduct Version RangeStatus
Microsoft Microsoft Authenticator for Android 6.0.0< 6.2511.7533 affected
Microsoft Microsoft Authenticator for IOS 6.0.0< 6.8.40 affected
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I. Basic Information for CVE-2026-26123

Vulnerability Information
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Vulnerability Title
Microsoft Authenticator Information Disclosure Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Cwe is not in rca categories in Microsoft Authenticator allows an unauthorized attacker to disclose information locally.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
自定义URL方案处理程序中的授权不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Authenticator 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Authenticator是美国微软（Microsoft）公司的一款用于多因素身份验证（MFA）的应用程序。 Microsoft Authenticator存在安全漏洞。攻击者利用该漏洞可以获取敏感信息。以下产品和版本受到影响：Microsoft Authenticator for Android,Microsoft Authenticator for IOS。
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 Microsoft Authenticator for Android 6.0.0 ~ 6.2511.7533 -
Microsoft Microsoft Authenticator for IOS 6.0.0 ~ 6.8.40 -

II. Public POCs for CVE-2026-26123

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III. Intelligence Information for CVE-2026-26123

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Vendor Advisories for CVE-2026-26123 (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-2026-26118 8.8 HIGH Azure MCP Server Tools Elevation of Privilege Vulnerability
CVE-2026-23669 8.8 HIGH RPC Runtime Library Remote Code Execution Vulnerability
CVE-2026-26106 8.8 HIGH Microsoft SharePoint Server Remote Code Execution Vulnerability
CVE-2026-24283 8.8 HIGH Multiple UNC Provider Kernel Driver Elevation of Privilege 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-2026-20967 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-2026-21262 8.8 HIGH SQL Server 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-2026-26148 8.1 HIGH Microsoft Azure AD SSH Login extension for Linux Elevation of Privilege Vulnerability
CVE-2026-26105 8.1 HIGH Microsoft SharePoint Server Spoofing Vulnerability
CVE-2026-25172 8.0 HIGH Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
CVE-2026-25173 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 product: Microsoft Authenticator for Android
Same vendor: Microsoft
Same weakness: CWE-939

V. Comments for CVE-2026-26123

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