CVE-2026-41100: CWE-284: Improper Access Control in Microsoft Microsoft 365 Copilot for Android
Improper access control in M365 Copilot allows an authorized attacker to perform spoofing locally.
AI Analysis
Technical Summary
This vulnerability in Microsoft 365 Copilot for Android (version 1.0) involves improper access control (CWE-284) that enables an authorized attacker to spoof locally. The CVSS 3.1 vector indicates the attack requires local access with low attack complexity and low privileges, no user interaction, and impacts confidentiality and integrity with low severity. Microsoft has released an official fix and manages remediation as this is a cloud service.
Potential Impact
An authorized attacker with local access can exploit this vulnerability to perform spoofing, potentially misleading the system or users. The impact affects confidentiality and integrity at a low level, with no impact on availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Since this is a cloud service, Microsoft manages the remediation on their side. Users and administrators should consult the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41100 for update and patch deployment guidance.
CVE-2026-41100: CWE-284: Improper Access Control in Microsoft Microsoft 365 Copilot for Android
Description
Improper access control in M365 Copilot allows an authorized attacker to perform spoofing locally.
CVSS v3.1
Score 4.4medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Microsoft 365 Copilot for Android (version 1.0) involves improper access control (CWE-284) that enables an authorized attacker to spoof locally. The CVSS 3.1 vector indicates the attack requires local access with low attack complexity and low privileges, no user interaction, and impacts confidentiality and integrity with low severity. Microsoft has released an official fix and manages remediation as this is a cloud service.
Potential Impact
An authorized attacker with local access can exploit this vulnerability to perform spoofing, potentially misleading the system or users. The impact affects confidentiality and integrity at a low level, with no impact on availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Since this is a cloud service, Microsoft manages the remediation on their side. Users and administrators should consult the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41100 for update and patch deployment guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-04-16T19:12:36.195Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Is Cloud Service
- true
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41100","vendor":"Microsoft"}]
Threat ID: 6a03655ecbff5d861008cb90
Added to database: 05/12/2026, 17:37:34 UTC
Last enriched: 06/19/2026, 17:41:58 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 72
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