CVE-2026-41614
Medium CVSS 6.2Published 2026-05-12 ยท last changed 2026-10-26
From our blog
The fix
Microsoft fixes this in a Microsoft Store app update, so Windows Update and WSUS won't deliver it. The app at the version below, or later, has the fix.
| App | Fixed in version | Package | Released |
|---|---|---|---|
| M365 Copilot for Desktop | 19.2604.43111.0 | Microsoft.MicrosoftOfficeHub | 2026-11-05 |
The Store updates these apps on its own schedule. A machine with Store updates turned off, or no
Store access at all (common on managed fleets), keeps the old version.
To check one, run Get-AppxPackage -AllUsers -Name Microsoft.MicrosoftOfficeHub and
compare its Version to the table.
What it is
Improper access control in M365 Copilot for Desktop allows an unauthorized attacker to perform spoofing locally.
Sources
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N