CVE-2026-32201: Microsoft SharePoint Server

What is CVE-2026-32201?

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

CVSS6.5 NVD 3.1

SeverityMEDIUM

Exploitation In the wild In CISA KEV

EPSS43% · P99

Triage statusActive Exploit

ActionPatch immediately

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CWECWE-20

NVD published2026-04-14

NVD last modified2026-06-17

Timeline

2026-04-14Published to the U.S. National Vulnerability Database (NVD)
2026-04-14Added to the CISA Known Exploited Vulnerabilities (KEV) catalog
2026-04-28CISA federal remediation deadline (BOD 22-01)
2026-06-17NVD record last updated

CISA Known Exploited Vulnerability

Microsoft SharePoint Server Improper Input Validation Vulnerability

Added to KEV2026-04-14

Federal patch deadline2026-04-28

Known ransomware useUnknown

Affected product

Microsoft SharePoint Server

Remediation Steps

Apply Microsoft security update for SharePoint Server immediately
Restrict Internet exposure of on-premises SharePoint Server instances using firewall rules and network segmentation
Review access logs for indicators of compromise
Enable enhanced logging and monitoring on affected SharePoint deployments

References

Referenced in our briefings & reports

Vulnerability Priority Report – Week 2 of July 2026 (July 13 – 19)

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🤖 This CVE page is generated by defend.network from NVD, CISA KEV, EPSS, and our verified daily briefings. Severity and exploitation data come from official sources; always verify remediation steps against the official vendor advisory before acting in production.