Microsoft SharePoint Has a New RCE Flaw. If You Haven’t Patched Yet, Go Do That.

Security Affairs

May 27, 2026 at 7:10 AM

CVE Microsoft Vulnerability Patch RCE Critical

Overview

Microsoft has identified a serious vulnerability in SharePoint, labeled CVE-2026-45659, which has a CVSS score of 8.8. This flaw allows attackers to execute remote code with minimal effort, posing a significant risk to organizations using the platform. The vulnerability does not require complicated conditions for exploitation, which increases its potential impact. Microsoft has released security updates to address this issue, and users are strongly advised to apply these patches as soon as possible to protect their systems. Ignoring this vulnerability could lead to unauthorized access and control over affected SharePoint environments.

Key Takeaways

Affected Systems: Microsoft SharePoint (specific versions not specified)
Action Required: Users should apply the latest security updates provided by Microsoft to patch CVE-2026-45659.
Timeline: Newly disclosed

Original Article Summary

A critical vulnerability, tracked as CVE-2026-45659, in Microsoft SharePoint can allow attackers to achieve remote code execution with little effort. Microsoft released security updates to patch a high-severity SharePoint vulnerability, tracked as CVE-2026-45659 (CVSS score of 8.8), that could allow remote code execution. The flaw does not require complex conditions for exploitation, making it a […]

Impact

Microsoft SharePoint (specific versions not specified)

Exploitation Status

The exploitation status is currently unknown. Monitor vendor advisories and security bulletins for updates.

Timeline

Newly disclosed

Remediation

Users should apply the latest security updates provided by Microsoft to patch CVE-2026-45659. Specific patch numbers or version details were not mentioned.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to CVE, Microsoft, Vulnerability, and 3 more.

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