CVE-2026-40421
Medium
Description
Files or directories accessible to external parties in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
SeverityMedium
CVSS4.3
Exploit probability—
Product
Microsoft Office
PublishedMay 12, 2026
First seenMay 12, 2026
Weakness typeCWE-73CWE-73
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft office | 2019, 2024 | — |
| microsoft 365_apps | No range specified | — |
| microsoft office_long_term_servicing_channel | 2021 | — |
| microsoft word | 2016 | — |
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