CVE-2026-20952: 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-2026-20952) involves a use-after-free condition in Microsoft 365 Apps for Enterprise (version 16.0.1). This flaw can be exploited by an unauthorized attacker to execute arbitrary code locally on the affected system. The CVSS 3.1 vector indicates low attack complexity, no privileges required, no user interaction, and impacts confidentiality, integrity, and availability with high severity. The vendor has released a patch to remediate this vulnerability.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code locally, potentially leading to full compromise of the affected system's confidentiality, integrity, and availability. This could result in unauthorized access, data manipulation, or disruption of service on the targeted machine.
Mitigation Recommendations
A patch is available for this vulnerability. It is recommended to apply the official update from Microsoft for Microsoft 365 Apps for Enterprise version 16.0.1 as soon as possible to remediate the issue. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-20952: 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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-20952) involves a use-after-free condition in Microsoft 365 Apps for Enterprise (version 16.0.1). This flaw can be exploited by an unauthorized attacker to execute arbitrary code locally on the affected system. The CVSS 3.1 vector indicates low attack complexity, no privileges required, no user interaction, and impacts confidentiality, integrity, and availability with high severity. The vendor has released a patch to remediate this vulnerability.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code locally, potentially leading to full compromise of the affected system's confidentiality, integrity, and availability. This could result in unauthorized access, data manipulation, or disruption of service on the targeted machine.
Mitigation Recommendations
A patch is available for this vulnerability. It is recommended to apply the official update from Microsoft for Microsoft 365 Apps for Enterprise version 16.0.1 as soon as possible to remediate the issue. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2025-12-04T20:04:16.339Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69668ae5a60475309f9ae23e
Added to database: 1/13/2026, 6:11:49 PM
Last enriched: 4/3/2026, 12:52:17 PM
Last updated: 5/10/2026, 6:55:37 AM
Views: 232
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