CVE-2026-32201
Microsoft SharePoint Server Spoofing Vulnerability
Microsoft SharePoint Server Improper Input Validation Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA notes
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-32201 ; https://nvd.nist.gov/vuln/detail/CVE-2026-32201
Description
Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:F/RL:O/RC:CAffected Products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Microsoft SharePoint Enterprise Server 2016 | 16.0.0 to <16.0.5548.1003 |
| Microsoft | Microsoft SharePoint Server 2019 | 16.0.0 to <16.0.10417.20114 |
| Microsoft | Microsoft SharePoint Server Subscription Edition | 16.0.0 to <16.0.19725.20210 |
References
1 LinksRecord Details
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Related Tool Categories
Tool categories that test for or protect against this vulnerability class.
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