Microsoft 365 Copilot vulnerabilities

49 vulnerabilities

Known vulnerabilities in Microsoft 365 Copilot, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.

9.6CVE-2021-43905microsoft365_copilot+1
EPSS score
2.98%
Microsoft Office app Remote Code Execution Vulnerability
7.8CVE-2025-59234microsoft365_apps+11
EPSS score
0.60%
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
7.8CVE-2025-59227microsoft365_apps+11
EPSS score
0.52%
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
8.4CVE-2025-62554microsoft365_apps+11
EPSS score
0.43%
Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.
8.4CVE-2025-62557microsoft365_apps+11
EPSS score
0.43%
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
7.8CVE-2025-62199microsoft365_apps+10
EPSS score
0.81%
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
7.5CVE-2025-26687microsoft365_copilot+38
EPSS score
1.14%
Use after free in Windows Win32K - GRFX allows an unauthorized attacker to elevate privileges over a network.
8.4CVE-2025-47162microsoft365_apps+11
EPSS score
0.76%
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
8.4CVE-2025-47164microsoft365_apps+11
EPSS score
0.65%
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
8.4CVE-2025-47167microsoft365_apps+11
EPSS score
0.67%
Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.
8.4CVE-2025-47953microsoft365_apps+11
EPSS score
0.54%
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
9.8CVE-2025-53766microsoft365_copilot+38
EPSS score
8.19%
Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code over a network.
5.5CVE-2025-53799microsoft365_copilot+36
EPSS score
0.78%
Use of uninitialized resource in Windows Imaging Component allows an unauthorized attacker to disclose information locally.
7.8CVE-2025-53732microsoft365_copilot+3
EPSS score
0.48%
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
8.4CVE-2025-49695microsoft365_apps+11
EPSS score
0.69%
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
8.4CVE-2025-49697microsoft365_apps+12
EPSS score
0.53%
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
8.4CVE-2025-49696microsoft365_apps+11
EPSS score
0.64%
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally.
7.8CVE-2025-49702microsoft365_apps+11
EPSS score
0.66%
Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.
9.3CVE-2025-32711microsoft365_copilot+1
EPSS score
8.03%
Ai command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network.
8.4CVE-2025-30386microsoft365_apps+11
EPSS score
0.68%
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.