Microsoft: >> 365 Copilot Security Vulnerabilities
Stack-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate privileges over a network.
CVSS Score
8.0
EPSS Score
0.007
Published
2026-10-13
Incorrect permission assignment for critical resource in M365 Copilot allows an authorized attacker to disclose information over a network.
CVSS Score
7.7
EPSS Score
0.008
Published
2026-09-18
Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an authorized attacker to elevate privileges over a network.
CVSS Score
9.9
EPSS Score
0.007
Published
2026-09-17
Deserialization of untrusted data in M365 Copilot allows an authorized attacker to execute code over a network.
CVSS Score
9.9
EPSS Score
0.017
Published
2026-07-24
Improper access control in Microsoft 365 Copilot for iOS allows an unauthorized attacker to elevate privileges over a network.
CVSS Score
8.1
EPSS Score
0.008
Published
2026-07-14
Stack-based buffer overflow in Windows GDI allows an authorized attacker to elevate privileges locally.
CVSS Score
7.8
EPSS Score
0.003
Published
2026-07-14
Improper neutralization of special elements used in a command ('command injection') in Copilot Chat (Microsoft Edge) allows an unauthorized attacker to execute code over a network.
CVSS Score
9.6
EPSS Score
0.009
Published
2026-07-14
Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges over a network.
CVSS Score
9.3
EPSS Score
0.007
Published
2026-07-02
Url redirection to untrusted site ('open redirect') in Microsoft 365 Copilot's Business Chat allows an unauthorized attacker to elevate privileges over a network.
CVSS Score
8.8
EPSS Score
0.008
Published
2026-06-19
Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to perform tampering over a network.
CVSS Score
6.5
EPSS Score
0.007
Published
2026-06-19
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