CVE-2026-123390

HighCVSS 8.8/10Last modified Nov 10, 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

CWE-502

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

VendorProductVersions
MicrosoftMicrosoft SharePoint Server Subscription Edition>= 16.0.0, < 16.0.20326.20136

References

Timeline

Published
Nov 10, 2026
Last modified
Nov 10, 2026
NVD status
Awaiting Analysis

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CVE-2026-123390: High severity, CVSS 8.8 | Vulnix