CVE-2026-26110: CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') in Microsoft Microsoft 365 Apps for Enterprise
Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.
AI Analysis
Technical Summary
This vulnerability in Microsoft 365 Apps for Enterprise (version 16.0.1) arises from a type confusion error (CWE-843) that enables unauthorized local code execution. The attacker can leverage this flaw to gain elevated privileges and execute arbitrary code on the affected system. The CVSS 3.1 vector indicates local attack vector with low attack complexity, no privileges required, and no user interaction needed, resulting in high impact on confidentiality, integrity, and availability. Microsoft has published a fix for this vulnerability.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary code locally with high impact on system confidentiality, integrity, and availability. This could lead to full compromise of the affected system running the vulnerable Microsoft 365 Apps for Enterprise version 16.0.1. There are currently no known exploits in the wild.
Mitigation Recommendations
A patch is available for this vulnerability. It is recommended to apply the official Microsoft update for Microsoft 365 Apps for Enterprise version 16.0.1 promptly to remediate this issue. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-26110: CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') in Microsoft Microsoft 365 Apps for Enterprise
Description
Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Microsoft 365 Apps for Enterprise (version 16.0.1) arises from a type confusion error (CWE-843) that enables unauthorized local code execution. The attacker can leverage this flaw to gain elevated privileges and execute arbitrary code on the affected system. The CVSS 3.1 vector indicates local attack vector with low attack complexity, no privileges required, and no user interaction needed, resulting in high impact on confidentiality, integrity, and availability. Microsoft has published a fix for this vulnerability.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary code locally with high impact on system confidentiality, integrity, and availability. This could lead to full compromise of the affected system running the vulnerable Microsoft 365 Apps for Enterprise version 16.0.1. There are currently no known exploits in the wild.
Mitigation Recommendations
A patch is available for this vulnerability. It is recommended to apply the official Microsoft update for Microsoft 365 Apps for Enterprise version 16.0.1 promptly to remediate this issue. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-02-11T15:52:13.910Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69b05631ea502d3aa87d6b17
Added to database: 3/10/2026, 5:34:41 PM
Last enriched: 4/18/2026, 2:15:12 PM
Last updated: 4/28/2026, 7:26:58 AM
Views: 400
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