VendorsMicrosoft365_copilot_chatany version
Vulnerabilities

Microsoft 365 Copilot Chat any version

Ranked by severity, then by exploit likelihood, unless you sort otherwise. Click a CVE ID for its full record.

8CVEs
CVE-2026-26137
Microsoft Exchange Elevation of Privilege Vulnerability
Published 2026-03-19 · Modified
9.9EPSS 0.006
CVE-2025-59272
Copilot Information Disclosure Vulnerability
Published 2025-10-09 · Modified
9.3EPSS 0.006
CVE-2025-59286
Copilot Information Disclosure Vulnerability
Published 2025-10-09 · Modified
9.3EPSS 0.006
CVE-2026-78501
Microsoft 365 Copilot Business Chat Information Disclosure Vulnerability
Published 2026-09-17 · Modified
8.6EPSS 0.005
CVE-2025-53787
Microsoft 365 Copilot BizChat Information Disclosure Vulnerability
Published 2025-08-07 · Analyzed
8.2EPSS 0.008
CVE-2026-26129
M365 Copilot Information Disclosure Vulnerability
Published 2026-05-07 · Modified
7.5EPSS 0.011
CVE-2026-26164
M365 Copilot Information Disclosure Vulnerability
Published 2026-05-07 · Modified
7.5EPSS 0.008
CVE-2025-53774
Microsoft 365 Copilot BizChat Information Disclosure Vulnerability
Published 2025-08-07 · Analyzed
7.5EPSS 0.007