CVE-2026-42832
High
Description
Improper access control in Microsoft Office allows an unauthorized attacker to perform spoofing locally.
SeverityHigh
CVSS7.7
Exploit probability—
Product
Microsoft Office
PublishedMay 12, 2026
First seenMay 12, 2026
Weakness typeCWE-284Improper access control
How to fix
Update
- microsoft excel16.0.19822.20190 or later
- microsoft word16.0.19822.20190 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft office | 2024 | — |
| microsoft excel | v < 16.0.19822.20190 | 16.0.19822.20190 |
| microsoft office_long_term_servicing_channel | 2021 | — |
| microsoft word | v < 16.0.19822.20190 | 16.0.19822.20190 |
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