CVE-2026-85885

8.8 highEPSS 0.7%

High (8.8) in microsoft 365 copilot. EPSS 0.7% chance of exploitation in the next 30 days.

Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an authorized attacker to elevate privileges over a network.

Severity

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 53% of CVEs (scores of 2026-10-31)
CWE: CWE-77
Published: 2026-09-17
Modified: 2026-09-25
Record from: the NVD, synced 2026-10-19

Affected

microsoft:365_copilot

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85885

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