CVE-2025-59233
High
Description
Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Microsoft Excel
PublishedOct 14, 2025
First seenOct 14, 2025
Weakness typeCWE-843CWE-843
How to fix
Update
- microsoft office_online_server16.0.10417.20059 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft excel | 2016 | — |
| microsoft 365_apps | No range specified | — |
| microsoft office | 2019 | — |
| microsoft office_long_term_servicing_channel | 2021, 2024 | — |
| microsoft office_online_server | v < 16.0.10417.20059 | 16.0.10417.20059 |
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