CVE-2026-41100

MEDIUM

Microsoft 365 Copilot for Android Spoofing Vulnerability

Title source: cna
STIX 2.1

Description

Improper access control in M365 Copilot allows an authorized attacker to perform spoofing locally.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
Microsoft 365 Copilot for Android Spoofing Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41100

Scores

CVSS v3 4.4
EPSS 0.0025
EPSS Percentile 16.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-284
Status published
Products (7)
microsoft/365_copilot < 16.0.19822.20190
Microsoft/Microsoft 365 Copilot for Android 1.0 - 16.0.19822.20190
Microsoft/Microsoft Excel for Android 16.0.0.0 - 16.0.19822.20190
Microsoft/Microsoft Loop for Android 1.0.0 - 16.0.19822.20190
Microsoft/Microsoft OneNote for Android 16.0.1 - 16.0.19822.20190
Microsoft/Microsoft PowerPoint for Android 16.0.0.0 - 16.0.19822.20190
Microsoft/Microsoft Word for Android 16.0.0.0 - 16.0.19822.20190
Published May 12, 2026
Tracked Since May 12, 2026