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TI-2021-01435 Aliases CVE-2021-1718GHSA-c6r7-5wvw-95cj

Microsoft SharePoint Server Tampering Vulnerability

Priority MEDIUM 45Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

Microsoft SharePoint Server Tampering Vulnerability

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.028 86th percentileScored 2026-11-07
Fix Fixed Microsoft SharePoint Foundation 2010 Service Pack 2 (Microsoft): publication

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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 Foundation 2010 Service Pack 213.0.0 to before publicationpublicationPatch availableCNA
  • Microsoft SharePoint Foundation 2010 Service Pack 2 VendorMicrosoft Affected 13.0.0 to before publication Fixed in publication Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:sharepoint_foundation:2010:sp2:*:*:*:*:*:*2010 sp2VulnerableMicrosoft
  • cpe:2.3:a:microsoft:sharepoint_foundation:2010:sp2:*:*:*:*:*:* Versions 2010 sp2 Vulnerable ·Microsoft

Remediation

  • Fix · CNA Microsoft SharePoint Foundation 2010 Service Pack 2 (Microsoft) Fixed in publication

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-1718
  2. 2026-10-03 Alias added: GHSA-c6r7-5wvw-95cj

References

Advisory 1

  • TI-2019-00394 Improper input validation in Microsoft SharePoint Server KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-08100 Microsoft Word Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2022-21993 Microsoft SharePoint Server Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
  • TI-2022-17767 Microsoft SharePoint Server Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
  • TI-2020-12940 Microsoft SharePoint Remote Code Execution Vulnerability CVSS 3.1HIGH 8.6
  • TI-2020-01145 A remote code execution vulnerability exists in Microsoft SharePoint Server when it fails… CVSS 3.1HIGH 8.8
See all 225 →

Sources

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