CVE-2025-53774

Microsoft 365 Copilot BizChat Information Disclosure Vulnerability

Published Aug 7, 2025 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
Microsoft 365 Copilot BizChat Information Disclosure Vulnerability

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-23956 Microsoft 365 Copilot BizChat Information Disclosure Vulnerability
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Microsoft 365 Copilot Business Chat
CPEs cpe:2.3:a:microsoft:365_copilot_business_chat:*:*:*:*:*:*:*:*
Vendors & Products Microsoft 365 Copilot Business Chat
Type Values Removed Values Added
First Time appeared Microsoft 365 Copilot Chat
CPEs cpe:2.3:a:microsoft:365_copilot_chat:-:*:*:*:*:*:*:*
Vendors & Products Microsoft 365 Copilot Chat
Type Values Removed Values Added
First Time appeared Microsoft
Microsoft 365
Microsoft 365 Copilot
Vendors & Products Microsoft
Microsoft 365
Microsoft 365 Copilot
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Microsoft 365 Copilot BizChat Information Disclosure Vulnerability
Title Microsoft 365 Copilot BizChat Information Disclosure Vulnerability
Weaknesses CWE-77
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Nov 3, 2026, 10:03 PM
Reserved
Jul 9, 2025, 1:25 PM
Status
Analyzed
Published
Aug 7, 2025, 9:15 PM
Modified
Jun 17, 2026, 9:38 AM