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CVE-2026-41090— Microsoft Copilot Tampering Vulnerability

CVSS 9.3 · Critical EPSS 0.05% · P15

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProductVersion RangeStatus
MicrosoftMicrosoft 365 Copilot for iOS-affected
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I. Basic Information for CVE-2026-41090

Vulnerability Information
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Vulnerability Title
Microsoft Copilot Tampering Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Improper neutralization of special elements used in a command ('command injection') in Microsoft 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:H/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 365 Copilot 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft 365 Copilot是美国微软（Microsoft）公司的一个集成于办公套件中的生成式AI协作助手。 Microsoft 365 Copilot存在命令注入漏洞，该漏洞源于命令注入中特殊元素的中和不当，可能导致未经授权的攻击者通过网络进行篡改。
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 365 Copilot for iOS - -

II. Public POCs for CVE-2026-41090

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III. Intelligence Information for CVE-2026-41090

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Vendor Advisories for CVE-2026-41090 (1)

Same Patch Batch · Microsoft · 2026-05-22 · 13 CVEs total

CVE-2026-4290110.0 CRITICALMicrosoft Entra ID Elevation of Privilege Vulnerability
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CVE-2026-4728010.0 CRITICALAzure Resource Manager Elevation of Privilege Vulnerability
CVE-2026-2365210.0 CRITICALMicrosoft Power Pages Remote Code Execution Vulnerability
CVE-2026-4041210.0 CRITICALAzure Orbital Spatio Remote Code Execution Vulnerability
CVE-2026-404119.9 CRITICALAzure Virtual Network Gateway Remote Code Execution Vulnerability
CVE-2026-338439.1 CRITICALMicrosoft Azure Active Directory B2C Elevation of Privilege Vulnerability
CVE-2026-456598.8 HIGHMicrosoft SharePoint Remote Code Execution Vulnerability
CVE-2026-354308.8 HIGHAzure Privileged Identity Management (PIM) Elevation of Privilege Vulnerability
CVE-2026-261477.7 HIGHAzure Stack HCI Information Disclosure Vulnerability
CVE-2026-236637.5 HIGHMicrosoft Global Secure Access (GSA) Information Disclosure Vulnerability
CVE-2026-428276.5 MEDIUMM365 Copilot Information Disclosure Vulnerability

IV. Related Vulnerabilities

Same vendor: Microsoft
Same weakness: CWE-77

V. Comments for CVE-2026-41090

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