CVE-2026-45472: CWE-416: Use After Free in Microsoft Microsoft 365 Apps for Enterprise
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-45472) involves a use-after-free condition in Microsoft 365 Apps for Enterprise, enabling local code execution by an unauthorized attacker. The CVSS 3.1 vector indicates low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. Microsoft has published an official fix and manages remediation for this cloud-hosted service. There are no known exploits in the wild at this time.
Potential Impact
Successful exploitation could allow an attacker to execute arbitrary code locally on affected systems, potentially leading to full compromise of confidentiality, integrity, and availability of the affected environment.
Mitigation Recommendations
An official fix is available from Microsoft. Since this is a cloud service, Microsoft manages the remediation server-side. Administrators and users should ensure their Microsoft 365 Apps for Enterprise are updated according to the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45472.
CVE-2026-45472: CWE-416: Use After Free in Microsoft Microsoft 365 Apps for Enterprise
Description
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
CVSS v3.1
Score 8.4high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-45472) involves a use-after-free condition in Microsoft 365 Apps for Enterprise, enabling local code execution by an unauthorized attacker. The CVSS 3.1 vector indicates low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. Microsoft has published an official fix and manages remediation for this cloud-hosted service. There are no known exploits in the wild at this time.
Potential Impact
Successful exploitation could allow an attacker to execute arbitrary code locally on affected systems, potentially leading to full compromise of confidentiality, integrity, and availability of the affected environment.
Mitigation Recommendations
An official fix is available from Microsoft. Since this is a cloud service, Microsoft manages the remediation server-side. Administrators and users should ensure their Microsoft 365 Apps for Enterprise are updated according to the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45472.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-12T16:06:43.099Z
- 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-2026-45472","vendor":"Microsoft"}]
Threat ID: 6a284cdc8dd33fbd85664d36
Added to database: 06/09/2026, 17:26:52 UTC
Last enriched: 07/29/2026, 21:56:19 UTC
Last updated: 07/31/2026, 21:26:44 UTC
Views: 85
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