CVE-2025-53774: Microsoft 365 Copilot BizChat Information Disclosure Vulnerability
Microsoft 365 Copilot BizChat
An information disclosure vulnerability affects Microsoft 365 Copilot BizChat. No further exploitation details have been confirmed.
disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why
- CVSS
- 6.5
- EPSS
- 0.01 · top 47% · 2026-11-13
- fix status
- Fix status unknown
- first report
- 7 Aug 2025
- last update
- 7 Aug 2025
- CVE ids
Timeline · 1
Sources · 1
Advisories and databases
- 2025-08-07CVE-2025-53774: Microsoft 365 Copilot BizChat Information Disclosure VulnerabilityNVD · nvd.nist.gov/vuln/detail/CVE-2025-53774
Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.
Classification
- lane
- Patch now
- AI role
- Attack on AI
- categories
- Infrastructure vulnerabilityData leak
- severity
- 2 · Disclosed vulnerability
- fix status
- Fix status unknown
- targets
- Microsoft
- mitre atlas
- no technique for these categories
- dates
- happened 7 Aug 2025 · first reported 7 Aug 2025
- origin
- NVDVulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
- record
- confidence 0.95 · created 2026-10-18 10:04Z · updated 2026-10-18 10:04Z
Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned
Copy a brief
This record as a short Markdown brief, for a ticket, a chat or a coding agent.
the brief as text
# CVE-2025-53774: Microsoft 365 Copilot BizChat Information Disclosure Vulnerability https://gcdradar.vercel.app/incidents/cve-2025-53774-microsoft-365-copilot-bizchat-information-dis · AIR-2025-0465 · closed 2025-08-07 - Lane: Patch now - Severity: 2 (Disclosed vulnerability) - Fix status: Fix status unknown - First reported: 2025-08-07 - AI role: Attack on AI - Products: Microsoft 365 Copilot BizChat - CVE ids: CVE-2025-53774 - CVSS: 6.5 ## Summary An information disclosure vulnerability affects Microsoft 365 Copilot BizChat. No further exploitation details have been confirmed. ## What to do No action recorded; read the sources below and the vendor's advisory. ## Latest updates - 2025-08-07: CVE-2025-53774: Microsoft 365 Copilot BizChat Information Disclosure Vulnerability (https://nvd.nist.gov/vuln/detail/CVE-2025-53774) ## Sources - 2025-08-07 NVD: CVE-2025-53774: Microsoft 365 Copilot BizChat Information Disclosure Vulnerability https://nvd.nist.gov/vuln/detail/CVE-2025-53774 Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.
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