CVE-2026-47293: CWE-416: Use After Free in Microsoft Microsoft 365 Apps for Enterprise
Use after free in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
CVE-2026-47293 is a use-after-free vulnerability (CWE-416) affecting Microsoft 365 Apps for Enterprise, specifically in the Microsoft Office Click-To-Run component. It allows an authorized local attacker to elevate privileges by exploiting the use-after-free condition. The vulnerability is rated high severity with a CVSS 3.1 score of 7.0, indicating high impact on confidentiality, integrity, and availability. Microsoft has released an official fix and manages remediation for this cloud service. No known active exploitation has been reported.
Potential Impact
Successful exploitation of this vulnerability could allow an authorized local attacker to elevate their privileges, potentially gaining higher-level access on the affected system. The CVSS score reflects high impact on confidentiality, integrity, and availability. However, there are no known exploits in the wild currently.
Mitigation Recommendations
An official fix is available from Microsoft. Because this is a cloud-hosted service, Microsoft manages the remediation server-side. Users and administrators should follow the guidance in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47293 to ensure their environments are updated and protected.
CVE-2026-47293: CWE-416: Use After Free in Microsoft Microsoft 365 Apps for Enterprise
Description
Use after free in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.0high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-47293 is a use-after-free vulnerability (CWE-416) affecting Microsoft 365 Apps for Enterprise, specifically in the Microsoft Office Click-To-Run component. It allows an authorized local attacker to elevate privileges by exploiting the use-after-free condition. The vulnerability is rated high severity with a CVSS 3.1 score of 7.0, indicating high impact on confidentiality, integrity, and availability. Microsoft has released an official fix and manages remediation for this cloud service. No known active exploitation has been reported.
Potential Impact
Successful exploitation of this vulnerability could allow an authorized local attacker to elevate their privileges, potentially gaining higher-level access on the affected system. The CVSS score reflects high impact on confidentiality, integrity, and availability. However, there are no known exploits in the wild currently.
Mitigation Recommendations
An official fix is available from Microsoft. Because this is a cloud-hosted service, Microsoft manages the remediation server-side. Users and administrators should follow the guidance in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47293 to ensure their environments are updated and protected.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-18T23:53:33.897Z
- 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-2026-47293","vendor":"Microsoft"}]
Threat ID: 6a284cec8dd33fbd85664fbd
Added to database: 06/09/2026, 17:27:08 UTC
Last enriched: 07/29/2026, 22:04:48 UTC
Last updated: 07/31/2026, 21:26:45 UTC
Views: 45
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.