CVE-2026-65807
High
Description
Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
SeverityHigh
CVSS8.8
Exploit probability57. percentile0.8%
Product
Microsoft Excel
PublishedAug 11, 2026
First seenAug 11, 2026
Weakness typeCWE-843CWE-843
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft excel | 2016 | — |
| microsoft 365_apps | No range specified | — |
| microsoft microsoft_365 | No range specified | — |
| microsoft office_2019 | No range specified | — |
| microsoft office_2021 | No range specified | — |
| microsoft office_2024 | No range specified | — |
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