CVE-2026-85900

Microsoft Office SharePoint Remote Code Execution Vulnerability

Published Oct 13, 2026 CVSS 3.1 · 8.8 High EPSS 1.5% KEV · Not listed
Description
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Description Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Title Microsoft Office SharePoint Remote Code Execution Vulnerability
First Time appeared Microsoft
Microsoft sharepoint Server
Weaknesses CWE-502
CPEs cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:*
Vendors & Products Microsoft
Microsoft sharepoint Server
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Nov 10, 2026, 8:40 PM
Reserved
Sep 4, 2026, 6:21 PM
Status
Analyzed
Published
Oct 13, 2026, 7:21 PM
Modified
Oct 14, 2026, 7:44 PM