Read the docs
TI-2023-13749 Aliases CVE-2023-29357GHSA-m2h6-v37r-r43p

Microsoft SharePoint Server Elevation of Privilege Vulnerability

Priority CRITICAL 100Exploited in the wildCWE-303Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Microsoft. Impact type from Microsoft.

Summary

Microsoft SharePoint Server Elevation of Privilege Vulnerability

Why it matters now

Exploitation Active In CISA KEV since 2024-01-10CISA due date 2024-01-31Known ransomware use
EPSS 0.99984 99th percentileScored 2026-11-07
Fix Fixed Microsoft: 2 updates

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftMicrosoft SharePoint Server 201916.0.0 to before 16.0.10399.2000516.0.10399.20005Patch availableCNA
  • Microsoft SharePoint Server 2019 VendorMicrosoft Affected 16.0.0 to before 16.0.10399.20005 Fixed in 16.0.10399.20005 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*2019VulnerableMicrosoft
  • cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:* Versions 2019 Vulnerable ·Microsoft

Remediation

Microsoft 2 updates

  • KB5002403
    Security Update
    • Microsoft SharePoint Server 2019 16.0.10399.20005
  • KB5002402
    Security Update
    • Microsoft SharePoint Server 2019 16.0.10399.20005

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Elevation of Privilege
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation More Likely

Timeline

  1. 2024-01-10 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2023-29357
  3. 2026-10-03 Alias added: GHSA-m2h6-v37r-r43p

References

Patch 1

  • TI-2026-42212 Microsoft SharePoint Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-37256 Microsoft SharePoint Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-16982 Microsoft SharePoint Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-33671 Microsoft SharePoint Server Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-00394 Improper input validation in Microsoft SharePoint Server KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-40539 Microsoft SharePoint Server Elevation of Privilege Vulnerability KEVCVSS 3.1CRITICAL 9.8
See all 631 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences