Improper verification of cryptographic signature in Microsoft Office SharePoint allows an unauthorized attacker to elevate privileges over a network.

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Vendors Products
Microsoft Subscribe
Sharepoint Server Subscribe
Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 14 Oct 2026 09:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 13 Oct 2026 19:15:00 +0000

Type Values Removed Values Added
Description Improper verification of cryptographic signature in Microsoft Office SharePoint allows an unauthorized attacker to elevate privileges over a network.
Title Microsoft Office SharePoint Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft sharepoint Server
Weaknesses CWE-347
CPEs cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:*
Vendors & Products Microsoft
Microsoft sharepoint Server
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-10-16T23:14:09.345Z

Reserved: 2026-09-29T17:27:07.499Z

Link: CVE-2026-102866

cve-icon Vulnrichment

Updated: 2026-10-13T21:14:03.333Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-13T19:17:51.207

Modified: 2026-10-14T19:45:04.610

Link: CVE-2026-102866

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-14T00:30:14Z

Weaknesses