CVE-2026-20944: CWE-125: Out-of-bounds Read in Microsoft Microsoft 365 Apps for Enterprise
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to execute code locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-20944) involves an out-of-bounds read (CWE-125) in Microsoft Office Word, part of Microsoft 365 Apps for Enterprise version 16.0.1. An attacker without privileges or user interaction can exploit this flaw to execute arbitrary code locally. The CVSS 3.1 vector indicates low attack complexity, no privileges required, and no user interaction needed, with high impact on confidentiality, integrity, and availability. The vulnerability is officially patched by Microsoft.
Potential Impact
Successful exploitation allows an unauthorized attacker to execute code locally on the affected system, potentially leading to full compromise of the impacted Microsoft 365 Apps for Enterprise installation. The vulnerability affects confidentiality, integrity, and availability of the system. There are no reports of active exploitation in the wild.
Mitigation Recommendations
An official patch is available for this vulnerability. Users and administrators should apply the provided update to Microsoft 365 Apps for Enterprise version 16.0.1 promptly to remediate the issue. Since this is not a cloud service, remediation depends on applying the patch locally. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-20944: CWE-125: Out-of-bounds Read in Microsoft Microsoft 365 Apps for Enterprise
Description
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to execute code locally.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-20944) involves an out-of-bounds read (CWE-125) in Microsoft Office Word, part of Microsoft 365 Apps for Enterprise version 16.0.1. An attacker without privileges or user interaction can exploit this flaw to execute arbitrary code locally. The CVSS 3.1 vector indicates low attack complexity, no privileges required, and no user interaction needed, with high impact on confidentiality, integrity, and availability. The vulnerability is officially patched by Microsoft.
Potential Impact
Successful exploitation allows an unauthorized attacker to execute code locally on the affected system, potentially leading to full compromise of the impacted Microsoft 365 Apps for Enterprise installation. The vulnerability affects confidentiality, integrity, and availability of the system. There are no reports of active exploitation in the wild.
Mitigation Recommendations
An official patch is available for this vulnerability. Users and administrators should apply the provided update to Microsoft 365 Apps for Enterprise version 16.0.1 promptly to remediate the issue. Since this is not a cloud service, remediation depends on applying the patch locally. 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: 69668ae5a60475309f9ae229
Added to database: 1/13/2026, 6:11:49 PM
Last enriched: 4/3/2026, 12:51:25 PM
Last updated: 5/10/2026, 9:09:14 AM
Views: 202
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