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CVE-2026-20963

exploited in the wild

CVSS

9.8

Reports

3

First seen

Mar 24

Last seen

Apr 13

Affected product

Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition

Associated actors

Interlock Ransomware Group ×1

Recent reports

March 2026 CVE Landscape: 31 High-Impact Vulnerabilities, Interlock Ransomware Exploits Cisco FMC Zero-Day

Recorded Future InsiktApr 13 Critical

Critical Vulnerability in SharePoint Exploited (CVE-2026-20963)

CERT-EU AdvisoriesMar 25 Critical

Microsoft Office SharePoint High-Risk Deserialization Vulnerability (CVE-2026-20963)

NICS TaiwanMar 24

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