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CVE-2026-26133— M365 Copilot Information Disclosure Vulnerability

Quick assessment

Affected
Microsoft Microsoft 365 Copilot 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 Excel等都是美国微软（Microsoft）公司的产品。Microsoft Excel是一款Office套件中的电子表格处理软件。Microsoft Edge是一款Windows 10之后版本系统附带的Web浏览器。Microsoft Word是一套Office套件中的文字处理软件。 Microsoft多款产品存在安全漏洞。该漏洞源于应用程序未能在处理特定文件路径或请求时进行充分的验证与过滤。以下产品受到影响：Microsoft OneNote for iOS、Microsoft O

CVSS 7.1 · High EPSS 0.54% · P44

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 20

VendorProduct Version RangeStatus
Microsoft Microsoft 365 Copilot for Android 1.0< 16.0.19815.10000 affected
Microsoft Microsoft 365 Copilot for iOS 1.0< 2.107.2 affected
Microsoft Microsoft Edge for Android 1.0.0< 145.3800.99 affected
Microsoft Microsoft Edge for iOS 1.0.0.0< 145.3800.99 affected
Microsoft Microsoft Excel for Android 16.0.0.0< 16.0.19822.20038 affected
Microsoft Microsoft Excel for iOS 1.0< 2.106.26020617 affected
Microsoft Microsoft Loop for iOS 2.0.0< 2.106.26020617 affected
Microsoft Microsoft OneNote 1.0.0< 2.106.26020617 affected
Microsoft Microsoft OneNote for Android 16.0.1< 16.0.19725.20142 affected
Microsoft Microsoft Outlook for Android 1.0< 5.2605 affected
Microsoft Microsoft Outlook for iOS 1.0.0< 5.2605 affected
Microsoft Microsoft Outlook for Mac 1.0.0< 5.2605 affected
Microsoft Microsoft PowerBI for Android 2.0.0< 2.2.260210.21290750 affected
Microsoft Microsoft PowerBI for iOS 1.0.0< 1.2.260302.2193910 affected
Microsoft Microsoft PowerPoint for Android 16.0.0.0< 16.0.19822.20038 affected
Microsoft Microsoft PowerPoint for iOS 1.0< 2.106.26020617 affected
Microsoft Microsoft Teams for Android 1.0.0< 1.0.0.2026043102 affected
Microsoft Microsoft Teams for iOS 2.0.0< 8.3.1 affected
Microsoft Microsoft Word for Android 16.0.0.0< 16.0.19822.20038 affected
Microsoft Microsoft Word for iOS 2.0.0< 2.106.26020617 affected
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I. Basic Information for CVE-2026-26133

Vulnerability Information
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
M365 Copilot Information Disclosure Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
AI command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
Vulnerability Title
Microsoft多款产品 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Excel等都是美国微软（Microsoft）公司的产品。Microsoft Excel是一款Office套件中的电子表格处理软件。Microsoft Edge是一款Windows 10之后版本系统附带的Web浏览器。Microsoft Word是一套Office套件中的文字处理软件。 Microsoft多款产品存在安全漏洞。该漏洞源于应用程序未能在处理特定文件路径或请求时进行充分的验证与过滤。以下产品受到影响：Microsoft OneNote for iOS、Microsoft O
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 365 Copilot for Android 1.0 ~ 16.0.19815.10000 -
Microsoft Microsoft 365 Copilot for iOS 1.0 ~ 2.107.2 -
Microsoft Microsoft Edge for Android 1.0.0 ~ 145.3800.99 -
Microsoft Microsoft Edge for iOS 1.0.0.0 ~ 145.3800.99 -
Microsoft Microsoft Excel for Android 16.0.0.0 ~ 16.0.19822.20038 -
Microsoft Microsoft Excel for iOS 1.0 ~ 2.106.26020617 -
Microsoft Microsoft Loop for iOS 2.0.0 ~ 2.106.26020617 -
Microsoft Microsoft OneNote 1.0.0 ~ 2.106.26020617 -
Microsoft Microsoft OneNote for Android 16.0.1 ~ 16.0.19725.20142 -
Microsoft Microsoft Outlook for Android 1.0 ~ 5.2605 -
Microsoft Microsoft Outlook for iOS 1.0.0 ~ 5.2605 -
Microsoft Microsoft Outlook for Mac 1.0.0 ~ 5.2605 -
Microsoft Microsoft PowerBI for Android 2.0.0 ~ 2.2.260210.21290750 -
Microsoft Microsoft PowerBI for iOS 1.0.0 ~ 1.2.260302.2193910 -
Microsoft Microsoft PowerPoint for Android 16.0.0.0 ~ 16.0.19822.20038 -
Microsoft Microsoft PowerPoint for iOS 1.0 ~ 2.106.26020617 -
Microsoft Microsoft Teams for Android 1.0.0 ~ 1.0.0.2026043102 -
Microsoft Microsoft Teams for iOS 2.0.0 ~ 8.3.1 -
Microsoft Microsoft Word for Android 16.0.0.0 ~ 16.0.19822.20038 -
Microsoft Microsoft Word for iOS 2.0.0 ~ 2.106.26020617 -

II. Public POCs for CVE-2026-26133

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III. Intelligence Information for CVE-2026-26133

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Vendor Advisories for CVE-2026-26133 (1)

IV. Related Vulnerabilities

Same product: Microsoft 365 Copilot for Android
Same vendor: Microsoft
Same weakness: CWE-77

V. Comments for CVE-2026-26133

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