M3
Product
Microsoft 365 Copilot's Business Chat
7
CVEs
0
On KEV
9.3
Max CVSS
0
New 30D
Severity mix
Critical 2High 5Medium 0Low 0
Watch
Add Microsoft 365 Copilot's Business Chat to your stack to get only the CVEs that touch what you run.
| CVE | CVSS | Published | Summary · affected versions |
|---|---|---|---|
| CVE-2026-78501 | 8.6 | Sep 17 | Microsoft 365 Copilot Business Chat Information Disclosure Vulnerability Affected: All versions, or not specified |
| CVE-2026-26129 | 7.5 | May 7 | M365 Copilot Information Disclosure Vulnerability Affected: All versions, or not specified |
| CVE-2026-26164 | 7.5 | May 7 | M365 Copilot Information Disclosure Vulnerability Affected: All versions, or not specified |
| CVE-2025-53787 | 7.5 | Aug 7 | Microsoft 365 Copilot BizChat Information Disclosure Vulnerability Affected: All versions, or not specified |
| CVE-2025-53774 | 7.5 | Aug 7 | Microsoft 365 Copilot BizChat Information Disclosure Vulnerability Affected: All versions, or not specified |
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