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High7.8Microsoft Server

High [CVE-2025-27746] Microsoft Office Remote Code Execution Vulnerability

This high-severity Microsoft Server advisory covers CVE-2025-27746 affecting SharePoint Server Subscription Edition Language Pack.

CVE-2025-27746 Published Apr 8, 2025Updated by vendor Aug 10, 2026
CVE-2025-27746
Affected products & platforms
Microsoft ServerSharePoint Server
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Summary

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

Affected product named by the advisory: SharePoint Server Subscription Edition Language Pack.

Affected versions
  • Microsoft 365 Apps for Enterprise 16.0.1 before https://aka.ms/OfficeSecurityReleases
  • Microsoft Office 2016 16.0.0 before 16.0.5495.1000
  • Microsoft Office 2019 19.0.0 before https://aka.ms/OfficeSecurityReleases
  • Microsoft Office LTSC 2021 16.0.1 before https://aka.ms/OfficeSecurityReleases
  • Microsoft Office LTSC 2024 16.0.0 before https://aka.ms/OfficeSecurityReleases
  • Microsoft Office LTSC for Mac 2021 16.0.1 before 16.96.25041326
  • Microsoft Office LTSC for Mac 2024 16.0.0 before 16.96.25041326
  • Office Online Server 16.0.0.0 before 16.0.10417.20003
  • SharePoint Server Subscription Edition Language Pack 16.0.0 before 16.0.10417.20003

Official advisory · high-confidence parse· fetched 2 hours ago·verify at source

Fixed versions
  • https://aka.ms/OfficeSecurityReleases
  • 16.0.5495.1000
  • 16.96.25041326
  • 16.0.10417.20003

Official advisory · high-confidence parse· fetched 2 hours ago·verify at source

Mitigation

Upgrade to a fixed release: https://aka.ms/OfficeSecurityReleases, 16.0.5495.1000, 16.96.25041326, 16.0.10417.20003. That is the remediation for this advisory.

The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.

Official advisory · high-confidence parse· fetched 2 hours ago·verify at source

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