Product by Microsoft
365 Copilot Chat
8 known vulnerabilities in 365 Copilot Chat (Microsoft), 0 of them actively exploited (CISA KEV).
Key figures
8
Vulnerabilities
0
Actively exploited (KEV)
0
Used by ransomware
3
Critical
Vulnerabilities
Actively exploited vulnerabilities (CISA KEV) first, then by priority.
| Severity | CVE | Title | CVSS | Published |
|---|---|---|---|---|
| Critical | CVE-2026-26137 | Microsoft Exchange Elevation of Privilege Vulnerability | 9.9 | |
| High | CVE-2026-78501 | Microsoft 365 Copilot Business Chat Information Disclosure Vulnerability | 8.6 | |
| High | CVE-2026-26129 | M365 Copilot Information Disclosure Vulnerability | 7.5 | |
| High | CVE-2026-26164 | M365 Copilot Information Disclosure Vulnerability | 7.5 | |
| Critical | CVE-2025-59272 | Copilot Information Disclosure Vulnerability | 9.3 | |
| Critical | CVE-2025-59286 | Copilot Information Disclosure Vulnerability | 9.3 | |
| High | CVE-2025-53787 | Microsoft 365 Copilot BizChat Information Disclosure Vulnerability | 8.2 | |
| High | CVE-2025-53774 | Microsoft 365 Copilot BizChat Information Disclosure Vulnerability | 6.5 |