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Microsoft 365 Copilot Elevation of Privilege Vulnerability

CVSS 3.1 9.9 CRITICALCheck source for fixed versionsKEV status unknown

Historical advisory recorded 30 Oct 2026 22:45:26 UTC. Read the latest advisory.

cve-program · CVE-2026-85885

Published

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

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-85885

Published

Microsoft 365 Copilot

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Microsoft",
                    "product": "Microsoft 365 Copilot",
                    "versions": [
                        {
                            "version": "-",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 12 Nov 16:29 UTC · 265 of 275 readable · 263 fully read · documentation 469/469 current