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CVE-2026-42893— Microsoft Outlook for iOS Tampering Vulnerability

CVSS 7.4 · High EPSS 0.05% · P16

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProductVersion RangeStatus
MicrosoftMicrosoft Outlook for iOS1.0.0< 5.2617.1affected
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I. Basic Information for CVE-2026-42893

Vulnerability Information
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Vulnerability Title
Microsoft Outlook for iOS Tampering Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to perform tampering over a network.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Microsoft M365 Copilot 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft M365 Copilot是美国微软（Microsoft）公司的一个AI驱动的生产力工具。 Microsoft M365 Copilot存在命令注入漏洞。攻击者利用该漏洞可以篡改信息。
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 Outlook for iOS 1.0.0 ~ 5.2617.1 -

II. Public POCs for CVE-2026-42893

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III. Intelligence Information for CVE-2026-42893

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

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CVE-2026-410899.8 CRITICALWindows Netlogon Remote Code Execution Vulnerability
CVE-2026-410969.8 CRITICALWindows DNS Client Remote Code Execution Vulnerability
CVE-2026-403799.3 CRITICALAzure Entra ID Spoofing Vulnerability
CVE-2026-404029.3 CRITICALWindows Hyper-V Elevation of Privilege Vulnerability
CVE-2026-428339.1 CRITICALMicrosoft Dynamics 365 On-Premises Remote Code Execution Vulnerability
CVE-2026-331179.1 CRITICALAzure SDK for Java Security Feature Bypass Vulnerability
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CVE-2026-403578.8 HIGHMicrosoft SharePoint Server Remote Code Execution Vulnerability
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CVE-2026-410948.8 HIGHMicrosoft Data Formulator Remote Code Execution Vulnerability
CVE-2026-404208.8 HIGHMicrosoft Office Click-To-Run Elevation of Privilege Vulnerability
CVE-2026-404038.8 HIGHWindows Graphics Component Remote Code Execution Vulnerability
CVE-2026-403708.8 HIGHSQL Server Remote Code Execution Vulnerability
CVE-2026-410868.8 HIGHWindows Admin Center in Azure Portal Elevation of Privilege Vulnerability
CVE-2026-354398.8 HIGHMicrosoft SharePoint Server Remote Code Execution Vulnerability
CVE-2026-331128.8 HIGHMicrosoft SharePoint Server Remote Code Execution Vulnerability

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

IV. Related Vulnerabilities

Same vendor: Microsoft
Same weakness: CWE-77

V. Comments for CVE-2026-42893

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