Description
Improper verification of cryptographic signature in Microsoft Office SharePoint allows an unauthorized attacker to elevate privileges over a network.
Published: 2026-10-13
Score: 8.1 High
EPSS: n/a
KEV: No
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

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'}


Subscriptions

Microsoft Sharepoint Server
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-10-13T21:33:54.455Z

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

Link: CVE-2026-102866

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

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

Modified: 2026-10-13T19:25:38.150

Link: CVE-2026-102866

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-347

    Improper Verification of Cryptographic Signature