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CVE-2023-33160: Microsoft SharePoint Server Remote Code Execution Vulnerability

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-07-11 · updated 2026-06-17
• Weakness: CWE-502

Description

Microsoft SharePoint Server Remote Code Execution Vulnerability

Affected products

• Microsoft SharePoint Server: 2016, 2019
• Microsoft SharePoint Server Subscription Edition: from 16.0.0 before 16.0.16130.20642 — fixed in 16.0.16130.20642
• Microsoft Sharepoint Enterprise Server 2016: from 16.0.0 before 16.0.5404.1000 — fixed in 16.0.5404.1000
• Microsoft SharePoint Server: from 16.0.0 before 16.0.10400.20008 — fixed in 16.0.10400.20008

How to fix

Upgrade to a fixed version: Microsoft SharePoint Server Subscription Edition 16.0.16130.20642; Microsoft Sharepoint Enterprise Server 2016 16.0.5404.1000; Microsoft SharePoint Server 16.0.10400.20008. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-33160
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-33160

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