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7.8
Microsoft Office Allows Unauthorized Code Execution
CVE-2026-26110
Summary
A security issue in Microsoft Office could allow an attacker to run unauthorized code on your computer. This could lead to data theft or system damage. Update Microsoft Office to the latest version to fix this issue.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions | Fix available |
|---|---|---|---|
| microsoft | 365_apps | All versions | – |
| microsoft | 365_apps | All versions | – |
| microsoft | office | <= 16.0.19822.20000 | – |
| microsoft | office | 2016 | – |
| microsoft | office | 2016 | – |
| microsoft | office | 2019 | – |
| microsoft | office | 2019 | – |
| microsoft | office_long_term_servicing_channel | 2021 | – |
| microsoft | office_long_term_servicing_channel | 2021 | – |
| microsoft | office_long_term_servicing_channel | 2021 | – |
| microsoft | office_long_term_servicing_channel | 2024 | – |
| microsoft | office_long_term_servicing_channel | 2024 | – |
| microsoft | office_long_term_servicing_channel | 2024 | – |
Original title
Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.
Original description
Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.
nvd CVSS3.1
8.4
Vulnerability type
CWE-843
Type Confusion
Published: 10 Mar 2026 · Updated: 14 Mar 2026 · First seen: 11 Mar 2026