---
id: CVE-2026-105013
title: >-
  Deserialization of untrusted data in Microsoft Office SharePoint allows an
  authorized attacker to execute code over a network.
summary: >-
  Deserialization of untrusted data in Microsoft Office SharePoint allows an
  authorized attacker to execute code over a network.
severity: high
cvss: 7.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L'
cwe:
  - CWE-502
published: '2026-10-13'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T22:17:27.620'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-105013'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-105013'
    label: secure@microsoft.com
tags:
  - nvd
ingestedAt: '2026-10-13T19:43:28.913Z'
---

## Overview

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

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.