CVE-2026-41614: CWE-284: Improper Access Control in Microsoft M365 Copilot for Desktop
Improper access control in M365 Copilot for Desktop allows an unauthorized attacker to perform spoofing locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-41614) involves improper access control in Microsoft M365 Copilot for Desktop 1.0.0, which enables an unauthorized local attacker to perform spoofing. The CVSS 3.1 vector indicates the attack requires local access with low complexity and no privileges or user interaction, impacting confidentiality with high severity. Microsoft has published an official fix to address this issue.
Potential Impact
An unauthorized attacker with local access can exploit this vulnerability to spoof, potentially leading to unauthorized disclosure of information. The impact is limited to confidentiality loss without affecting integrity or availability. No known exploits are currently reported in the wild.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the patch provided in the Microsoft security update guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41614 to remediate this vulnerability.
CVE-2026-41614: CWE-284: Improper Access Control in Microsoft M365 Copilot for Desktop
Description
Improper access control in M365 Copilot for Desktop allows an unauthorized attacker to perform spoofing locally.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-41614) involves improper access control in Microsoft M365 Copilot for Desktop 1.0.0, which enables an unauthorized local attacker to perform spoofing. The CVSS 3.1 vector indicates the attack requires local access with low complexity and no privileges or user interaction, impacting confidentiality with high severity. Microsoft has published an official fix to address this issue.
Potential Impact
An unauthorized attacker with local access can exploit this vulnerability to spoof, potentially leading to unauthorized disclosure of information. The impact is limited to confidentiality loss without affecting integrity or availability. No known exploits are currently reported in the wild.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the patch provided in the Microsoft security update guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41614 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-04-21T22:14:12.924Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41614","vendor":"Microsoft"}]
Threat ID: 6a036562cbff5d861008cc54
Added to database: 5/12/2026, 5:37:38 PM
Last enriched: 5/12/2026, 6:08:53 PM
Last updated: 5/13/2026, 4:47:48 AM
Views: 6
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.