7.7
High
CVE-2026-85887 Incorrect permission assignment for critical resource in M365 Copilot allows an authorized attacker to disclose…
Description
Incorrect permission assignment for critical resource in M365 Copilot allows an authorized attacker to disclose information over a network.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Microsoft 365 Copilot | Versions not published |
References
- M365 Copilot Information Disclosure Vulnerability msrc.microsoft.com
Timeline
- Published
- Last modified
Other CVEs of Microsoft 365 Copilot
The 14 CVEs of Microsoft 365 Copilot →
CVE-2026-85885
Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an authorized…
9.9
Critical
CVE-2026-50517
Deserialization of untrusted data in M365 Copilot allows an authorized attacker to execute code over a network
9.9
Critical
CVE-2026-41106
Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate…
9.3
Critical
CVE-2026-47645
Url redirection to untrusted site ('open redirect') in Microsoft 365 Copilot's Business Chat allows an unauthorized…
8.8
High