What’s Vulnerable › Vulnerabilities

CVE-2023-29357: Microsoft SharePoint Server Elevation of Privilege Vulnerability

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2024-01-10
• EPSS: 100.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-06-13 · updated 2026-06-17
• Weakness: CWE-303

Description

Microsoft SharePoint Server Elevation of Privilege Vulnerability

Affected products

• Microsoft SharePoint Server: 2019
• Microsoft SharePoint Server: from 16.0.0 before 16.0.10399.20005 — fixed in 16.0.10399.20005

How to fix

Upgrade to a fixed version: Microsoft SharePoint Server 16.0.10399.20005. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-29357
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-29357
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-29357

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