CriticalCritical vulnerability

CVE-2026-85885 (CVSS 9.9)

NVD · officialPublished Sep 17, 2026Risk 50/100EPSS 0.5%

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

Technical details

CVSS

9.9

AV:NetworkAC:LowPR:LowUI:NoneC:HighI:HighA:High

Evidence and sources

This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.

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