Description
Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.
Published: 2026-01-13
Score: 9.8 Critical
EPSS: 5.3% Low
KEV: Yes
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 02 Apr 2026 08:00:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 01 Apr 2026 23:45:00 +0000

Type Values Removed Values Added
Description Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network. Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.
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'}

cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}


Wed, 18 Mar 2026 20:15:00 +0000

Type Values Removed Values Added
References
Metrics ssvc

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

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 18 Mar 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics kev

{'dateAdded': '2026-03-18T00:00:00+00:00', 'dueDate': '2026-03-21T00:00:00+00:00'}


Wed, 14 Jan 2026 19:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:microsoft:sharepoint_server:2016:*:*:*:enterprise:*:*:*
cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*

Tue, 13 Jan 2026 22:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Tue, 13 Jan 2026 18:15:00 +0000

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 SharePoint Remote Code Execution Vulnerability
First Time appeared Microsoft
Microsoft sharepoint Server
Microsoft sharepoint Server 2016
Microsoft sharepoint Server 2019
Weaknesses CWE-502
CPEs cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:*
cpe:2.3:a:microsoft:sharepoint_server_2016:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:microsoft:sharepoint_server_2019:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft sharepoint Server
Microsoft sharepoint Server 2016
Microsoft sharepoint Server 2019
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'}


Subscriptions

Microsoft Sharepoint Server Sharepoint Server 2016 Sharepoint Server 2019
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-04-02T03:55:34.121Z

Reserved: 2025-12-04T20:04:16.341Z

Link: CVE-2026-20963

cve-icon Vulnrichment

Updated: 2026-01-13T21:42:50.614Z

cve-icon NVD

Status : Analyzed

Published: 2026-01-13T18:16:24.260

Modified: 2026-04-01T16:01:22.890

Link: CVE-2026-20963

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses