CVE-2026-45459
Low
Description
Protection mechanism failure in Microsoft Office Excel allows an unauthorized attacker to bypass a security feature locally.
SeverityLow
CVSS3.3
Exploit probability—
Product
Microsoft 365
PublishedJun 9, 2026
First seenJun 9, 2026
Weakness typeCWE-693CWE-693
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft microsoft_365 | No range specified | — |
| microsoft 365_apps | No range specified | — |
| microsoft office_2021 | No range specified | — |
| microsoft office_2024 | No range specified | — |
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