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CVE-2026-58644 CISA KEV · Actively exploitedSuited to automated attack · CISA

Microsoft SharePoint Remote Code Execution Vulnerability

CVSS score

9.8

EPSS probability

%15.9

Risk score

3.1

Published

3 mo ago

OverviewPublic Exploits (2)NewsroomVulnerability Timeline

Public Exploits · GitHub and Metasploit Intelligence

This tab scans the sources that NVD labels as exploits, GitHub repositories matching the CVE identifier and Rapid7 Metasploit Framework modules. Only links to sources that were actually found are shown.

G
WismanSec/sharepoint-2026-poc
GitHub

PoC, IOCs, and detection logic for the SharePoint /_trust WS-Federation BinaryFormatter deserialization chain. Lab reconstruction covering unauthenticated RCE, in-process machine key theft, and the artifacts each variant leaves behind. SharePoint 2016, 2019, and Subscription Edition. CVE-2026-50522, CVE-2026-45659, CVE-2026-56164, CVE-2026-58644.

Public PoCSource updated: 19.08.2026 16:54:37
N
projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-58644.yaml
Nuclei

Nuclei: Microsoft SharePoint Server - WS-Federation BinaryFormatter Deserialization RCE

Exploit reference

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