CVE-2025-53774
Microsoft 365 Copilot BizChat Information Disclosure Vulnerability
Microsoft 365 Copilot BizChat Information Disclosure Vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Microsoft 365 Copilot BizChat Information Disclosure Vulnerability
Microsoft 365 Copilot BizChat Information Disclosure Vulnerability
- Record
CVE-2025-53774- CVSS 3.1
- 6.5 Medium
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 - Weakness
- CWE-77
- Updated
- 2026-11-03
EUVDEUVD-2025-23956
Microsoft 365 Copilot BizChat Information Disclosure Vulnerability
- Record
EUVD-2025-23956- CVSS 3.1
- 6.5 Medium
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 - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-hp6v-f522-x8gx
Microsoft 365 Copilot BizChat Information Disclosure Vulnerability
Microsoft 365 Copilot BizChat Information Disclosure Vulnerability
- Record
GHSA-hp6v-f522-x8gx- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-77
- Updated
- 2026-11-02
NVD
Microsoft 365 Copilot BizChat Information Disclosure Vulnerability
- Record
CVE-2025-53774- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-77
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | CVE List, EUVD | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-53774 is a medium vulnerability (CVSS 6.5) in Microsoft 365 Copilot Chat, published August 7, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.63%, the 50th percentile. No source names a fixed version.