Application SecurityIntermediate5 modules

Microsoft Patches SharePoint RCE Flaw CVE-2026-45659 Across Server Versions

HackerLegend.com Threat IntelligenceOriginal Source

Threat Overview

Remote code execution vulnerability in Microsoft SharePoint CVE-2026-45659 affects multiple server versions, impacting security and data integrity

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Threat Overview

A remote code execution (RCE) vulnerability, tracked as CVE-2026-45659, affects Microsoft SharePoint across various server versions, allowing attackers to exploit it without specialized conditions. The vulnerability has a CVSS score of 8.8 and is assigned an important severity. Deserialization of untrusted data in Microsoft Office SharePoint is the root cause.
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Key Intelligence Points

1. CVE-2026-45659 is a remote code execution vulnerability in Microsoft SharePoint
2. The vulnerability affects multiple SharePoint server versions and has a CVSS score of 8.8
3. Attackers can exploit the vulnerability without requiring specialized conditions
4. The vulnerability is caused by deserialization of untrusted data in Microsoft Office SharePoint
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MITRE ATT&CK Techniques

T1210 - Exploit Public-Facing Application
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Mitigation & Detection

Apply the latest Microsoft patches to fix the CVE-2026-45659 vulnerability in SharePoint
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