CVE-2026-42827— M365 Copilot Information Disclosure Vulnerability
Possible ATT&CK Techniques 1AI
T1059 · Command and Scripting InterpreterAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Microsoft | Microsoft 365 Copilot | - | affected |
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I. Basic Information for CVE-2026-42827
Vulnerability Information
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Vulnerability Title
M365 Copilot Information Disclosure 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 disclose information over a network.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/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)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Microsoft | Microsoft 365 Copilot | - | - |
II. Public POCs for CVE-2026-42827
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-42827 (1)
Same Patch Batch · Microsoft · 2026-05-22 · 13 CVEs total
| CVE-2026-42901 | 10.0 CRITICAL | Microsoft Entra ID Elevation of Privilege Vulnerability |
| CVE-2026-41104 | 10.0 CRITICAL | Microsoft Planetary Computer Pro Information Disclosure Vulnerability |
| CVE-2026-47280 | 10.0 CRITICAL | Azure Resource Manager Elevation of Privilege Vulnerability |
| CVE-2026-23652 | 10.0 CRITICAL | Microsoft Power Pages Remote Code Execution Vulnerability |
| CVE-2026-40412 | 10.0 CRITICAL | Azure Orbital Spatio Remote Code Execution Vulnerability |
| CVE-2026-40411 | 9.9 CRITICAL | Azure Virtual Network Gateway Remote Code Execution Vulnerability |
| CVE-2026-41090 | 9.3 CRITICAL | Microsoft Copilot Tampering Vulnerability |
| CVE-2026-33843 | 9.1 CRITICAL | Microsoft Azure Active Directory B2C Elevation of Privilege Vulnerability |
| CVE-2026-45659 | 8.8 HIGH | Microsoft SharePoint Remote Code Execution Vulnerability |
| CVE-2026-35430 | 8.8 HIGH | Azure Privileged Identity Management (PIM) Elevation of Privilege Vulnerability |
| CVE-2026-26147 | 7.7 HIGH | Azure Stack HCI Information Disclosure Vulnerability |
| CVE-2026-23663 | 7.5 HIGH | Microsoft Global Secure Access (GSA) Information Disclosure Vulnerability |
IV. Related Vulnerabilities
Same vendor: Microsoft
- CVE-2026-42901
Microsoft Entra ID Elevation of Privilege Vulnerability - CVE-2026-23663
Microsoft Global Secure Access (GSA) Information Disclosure - CVE-2026-41104
Microsoft Planetary Computer Pro Information Disclosure Vuln - CVE-2026-45659
Microsoft SharePoint Remote Code Execution Vulnerability - CVE-2026-26147
Azure Stack HCI Information Disclosure Vulnerability
Same weakness: CWE-77
- CVE-2026-46368
luci-app-https-dns-proxy Authenticated Command Injection via - CVE-2026-40034
gitoxide - Command Injection via Partial .gitmodules Overrid - CVE-2026-9453
FoundDream miniclawd SkillsLoader skills-loader.ts which com - CVE-2026-9441
Edimax BR-6478AC POST Request formiNICbasic command injectio - CVE-2026-9440
Edimax BR-6478AC POST Request formAccept command injection
V. Comments for CVE-2026-42827
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