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CVE-2025-53774— Microsoft 365 Copilot BizChat Information Disclosure Vulnerability

Quick assessment

Affected
Microsoft Microsoft 365 Copilot's Business Chat
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 365 Copilot BizChat是美国微软（Microsoft）公司的一个AI聊天软件。 Microsoft 365 Copilot BizChat存在命令注入漏洞。该漏洞源于命令中使用的特殊元素中和不当。攻击者利用该漏洞可以获取敏感信息。

CVSS 6.5 · Medium EPSS 0.59% · P45

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2025-53774

Vulnerability Information
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Vulnerability Title
Microsoft 365 Copilot BizChat Information Disclosure Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Microsoft 365 Copilot BizChat Information Disclosure Vulnerability
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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 365 Copilot BizChat 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft 365 Copilot BizChat是美国微软（Microsoft）公司的一个AI聊天软件。 Microsoft 365 Copilot BizChat存在命令注入漏洞。该漏洞源于命令中使用的特殊元素中和不当。攻击者利用该漏洞可以获取敏感信息。
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

Vendor Product Affected Versions CPE Subscribe
Microsoft Microsoft 365 Copilot's Business Chat - -

II. Public POCs for CVE-2025-53774

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III. Intelligence Information for CVE-2025-53774

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Same Patch Batch · Microsoft · 2025-08-07 · 4 CVEs total

CVE-2025-53767 10.0 CRITICAL Azure OpenAI Elevation of Privilege Vulnerability
CVE-2025-53792 9.1 CRITICAL Azure Portal Elevation of Privilege Vulnerability
CVE-2025-53787 8.2 HIGH Microsoft 365 Copilot BizChat Information Disclosure Vulnerability

IV. Related Vulnerabilities

Same product: Microsoft 365 Copilot's Business Chat
Same vendor: Microsoft
Same weakness: CWE-77

V. Comments for CVE-2025-53774

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