CVE-2026-32201

Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.

Score

CVSS 3.1 6.5 Medium

Status

Analyzed - secure@microsoft.com

Published

2026-04-14

Last modified

2026-10-26

Known exploited (CISA KEV)

since 2026-04-14, action due 2026-04-28: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Weaknesses

CWE-20

Affected products

• Sharepoint Server (Microsoft)
• Sharepoint Server 2016 (Microsoft)
• Sharepoint Server 2019 (Microsoft)

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32201
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-32201