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CVE-2026-26114

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

Vendor	Product	Versions
Microsoft	Microsoft SharePoint Enterprise Server 2016	>= 16.0.0, < 16.0.5543.1000
Microsoft	Microsoft SharePoint Server 2019	>= 16.0.0, < 16.0.10417.20102

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26114Vendor Advisory

Timeline

Published: Mar 10, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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CVE-2026-26114: High severity, CVSS 8.8 | Vulnix