Microsoft 365 Copilot
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Recent Microsoft 365 Copilot Security Advisories
| Advisory | Title | Published |
|---|---|---|
| CVE-2026-24299 | CVE-2026-24299 M365 Copilot Information Disclosure Vulnerability | March 19, 2026 |
| CVE-2026-26137 | CVE-2026-26137 Microsoft 365 Copilot BizChat Elevation of Privilege Vulnerability | March 19, 2026 |
| CVE-2026-26133 | CVE-2026-26133 M365 Copilot Information Disclosure Vulnerability | March 12, 2026 |
| CVE-2026-24307 | CVE-2026-24307 M365 Copilot Information Disclosure Vulnerability | January 22, 2026 |
| CVE-2025-59252 | CVE-2025-59252 M365 Copilot Spoofing Vulnerability | October 10, 2025 |
| CVE-2025-53787 | CVE-2025-53787 Microsoft 365 Copilot BizChat Information Disclosure Vulnerability | August 7, 2025 |
| CVE-2025-53774 | CVE-2025-53774 Microsoft 365 Copilot BizChat Information Disclosure Vulnerability | August 7, 2025 |
| CVE-2025-32711 | CVE-2025-32711 M365 Copilot Information Disclosure Vulnerability | June 11, 2025 |
By the Year
In 2026 there have been 2 vulnerabilities in Microsoft 365 Copilot with an average score of 7.3 out of ten. Last year, in 2025 365 Copilot had 1 security vulnerability published. That is, 1 more vulnerability have already been reported in 2026 as compared to last year. Last year, the average CVE base score was greater by 2.00
| Year | Vulnerabilities | Average Score |
|---|---|---|
| 2026 | 2 | 7.30 |
| 2025 | 1 | 9.30 |
| 2024 | 0 | 0.00 |
| 2023 | 0 | 0.00 |
| 2022 | 0 | 0.00 |
| 2021 | 1 | 9.60 |
It may take a day or so for new 365 Copilot vulnerabilities to show up in the stats or in the list of recent security vulnerabilities. Additionally vulnerabilities may be tagged under a different product or component name.
Recent Microsoft 365 Copilot Security Vulnerabilities
Mar 2026: M365 Copilot Information Disclosure Vulnerability
CVE-2026-24299
5.3 - Medium
- March 19, 2026
Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.
Command Injection
Jan 2026: M365 Copilot Information Disclosure Vulnerability
CVE-2026-24307
9.3 - Critical
- January 22, 2026
Improper validation of specified type of input in M365 Copilot allows an unauthorized attacker to disclose information over a network.
Improper Validation of Specified Type of Input
Jun 2025: M365 Copilot Information Disclosure Vulnerability
CVE-2025-32711
9.3 - Critical
- June 11, 2025
Ai command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network.
Command Injection
Microsoft Office app Remote Code Execution Vulnerability
CVE-2021-43905
9.6 - Critical
- December 15, 2021
Microsoft Office app Remote Code Execution Vulnerability
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