CVE-2026-58644

CVE

Threat entity extracted from intelligence sources

Frequency

occurrences

First Seen

September 20, 2026

Last Seen

September 20, 2026

API

Exploited in Wild

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Ransomware Use

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Public Exploits

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Attack Vector

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Vulnerability Overview

Exploitation Activity

Exploitation Intelligence

Critical SharePoint RCE Vulnerabilities Exploited in the Wild72.6

CVE-2026-45659 and CVE-2026-58644 are critical remote code execution (RCE) vulnerabilities affecting Microsoft SharePoint Server. CVE-2026-45659, published on May 22, 2026, allows authenticated users to exploit deserialization flaws for RCE under the IIS application pool identity. CVE-2026-58644, di...

Public Exploits

Checking GitHub for proof-of-concept code…

Related Clusters (1)

Critical SharePoint RCE Vulnerabilities Exploited in the Wild

2d ago·4 sources

Related Entities

Zero-day Exploit CVE-2026-55040 Cwe-502 - Deserialization Of Untrusted Data T1505.003 - Web Shell SharePoint Server

CVE-2026-58644

Vulnerability Overview

Exploitation Activity

Exploitation Intelligence

Public Exploits

CVE Details

Related Clusters (1)

Critical SharePoint RCE Vulnerabilities Exploited in the Wild

Related Articles (1)

The Patch Is Not Enough: SharePoint's ToolShell Chain Steals Keys That Outlive the Fix

Related Entities