CVE-2026-41100

Microsoft 365 Copilot for Android Spoofing Vulnerability

Published May 12, 2026 CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed
Description
Improper access control in M365 Copilot allows an authorized attacker to perform spoofing locally.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Microsoft excel
Microsoft loop
Microsoft onenote For Android
Microsoft powerpoint
Microsoft word
CPEs cpe:2.3:a:microsoft:excel:*:*:*:*:*:android:*:*
cpe:2.3:a:microsoft:loop:*:*:android:*:*:*:*:*
cpe:2.3:a:microsoft:onenote_for_android:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:powerpoint:*:*:*:*:*:android:*:*
cpe:2.3:a:microsoft:word:*:*:*:*:*:android:*:*
Vendors & Products Microsoft excel
Microsoft loop
Microsoft onenote For Android
Microsoft powerpoint
Microsoft word
Type Values Removed Values Added
First Time appeared Microsoft 365 Copilot
Weaknesses NVD-CWE-Other
CPEs cpe:2.3:a:microsoft:365_copilot:*:*:*:*:*:android:*:*
Vendors & Products Microsoft 365 Copilot
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Microsoft 365 Copilot Android
Vendors & Products Microsoft 365 Copilot Android
Type Values Removed Values Added
Description Improper access control in M365 Copilot allows an authorized attacker to perform spoofing locally.
Title Microsoft 365 Copilot for Android Spoofing Vulnerability
First Time appeared Microsoft
Microsoft 365 Copilot Android
Weaknesses CWE-284
CPEs cpe:2.3:a:microsoft:365_copilot_Android:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft 365 Copilot Android
References
Metrics cvssV3_1

{'score': 4.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Aug 10, 2026, 3:13 PM
Reserved
Apr 16, 2026, 7:12 PM
Status
Analyzed
Published
May 12, 2026, 6:17 PM
Modified
Oct 26, 2026, 6:10 PM