Local code execution via undisclosed type confusion
Published Mar 10, 2026 · Updated Mar 10, 2026
Type confusion in Microsoft Office products allows local users to execute arbitrary code without privileges or user interaction. Microsoft has not disclosed the affected Office component, the incompatible resource types, or the operation that triggers the confusion. Exploitation requires local access but no privileges or user interaction and grants code execution in the affected Office process.
Summary
What happened
Type confusion in Microsoft Office products allows local users to execute arbitrary code without privileges or user interaction. Microsoft has not disclosed the affected Office component, the incompatible resource types, or the operation that triggers the confusion. Exploitation requires local access but no privileges or user interaction and grants code execution in the affected Office process.
The record
- CVE
- CVE-2026-26110
- Published
- Mar 10, 2026
- Updated
- Mar 10, 2026
- Vendor
- Microsoft
- Product
- Microsoft Office LTSC for Mac 2024
- Classifications
- CWE-843, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 10, 2026CVE publishedPublication date reported by the CVE source.
- Mar 10, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=16.0.0 <16.107.26030819
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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