Detections
Analytics

Microsoft 365 Copilot < 19.2604.43111.0 Spoofing (CVE-2026-41614)

medium Nessus Plugin ID 314925

Synopsis

The Windows app installed on the remote host is affected by a spoofing vulnerability.

Description

The Windows 'Microsoft 365 Copilot' app (formerly known as 'Microsoft 365 (Office)') installed on the remote host is prior to 19.2604.43111.0. It is, therefore, affected by a spoofing vulnerability:

 - Improper access control in Microsoft 365 Copilot for Desktop allows an unauthorized attacker to perform spoofing locally. (CVE-2026-41614)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade the Windows 'Microsoft 365 Copilot' app to version 19.2604.43111.0 or later via the Microsoft Store.

See Also

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41614

Plugin Details

Severity: Medium

ID: 314925

File Name: smb_nt_ms26_may_officehub_app.nasl

Version: 1.1

Type: Local

Agent: windows

Published: 5/15/2026

Updated: 5/15/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:N/A:N

CVSS Score Source: CVE-2026-41614

CVSS v3

Risk Factor: Medium

Base Score: 6.2

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Vulnerability Information

CPE: cpe:/a:microsoft:office, cpe:/o:microsoft:windows

Required KB Items: SMB/Registry/Enumerated, WMI/Windows App Store/Enumerated

Patch Publication Date: 5/12/2026

Vulnerability Publication Date: 5/12/2026

Reference Information

CVE: CVE-2026-41614

IAVA: 2026-A-0473