CVE-2025-62459
High
Description
Microsoft Defender Portal Spoofing Vulnerability
SeverityHigh
CVSS8.3
Exploit probability—
Product
Microsoft 365 Defender Portal
PublishedNov 20, 2025
First seenNov 20, 2025
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft 365_defender_portal | No range specified | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
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