CVE-2026-55132: Microsoft Word Remote Code Execution Vulnerability
Published Jul 14, 2026
·Updated
Double free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Other sources
Microsoft Word Remote Code Execution Vulnerability
— Microsoft
Affected Software
33 affected componentsFixes available
Microsoft Word
Microsoft Office LTSC 2024 for 32-bit editions<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft SharePoint Server Subscription Edition<16.0.19725.20434
16.0.19725.20434
Microsoft Office LTSC 2021 for 64-bit editions<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft Office LTSC 2021 for 32-bit editions<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft Office LTSC for Mac 2021<16.111.26071215
16.111.26071215
Microsoft 365 Apps for Enterprise<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft 365 Apps for Enterprise<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft SharePoint Enterprise Server 2016<16.0.5561.1001
16.0.5561.1001
Microsoft SharePoint Server 2019<16.0.10417.20175
16.0.10417.20175
Microsoft Office 2019 for 64-bit editions<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft Office 365 for Mac<16.111.26071215
16.111.26071215
Microsoft Word 2016<16.0.5561.1000
16.0.5561.1000
Microsoft Word 2016<16.0.5561.1000
16.0.5561.1000
Microsoft Office 2019 for 32-bit editions<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft Office LTSC 2024 for 64-bit editions<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft Office LTSC for Mac 2024<16.111.26071215
16.111.26071215
Microsoft 365 Apps
Microsoft 365 Apps
Microsoft Microsoft 365 Macos
Microsoft Office 2019
Microsoft Office 2019
Microsoft Office 2021
Microsoft Office 2021
Microsoft Office 2021 Macos
Microsoft Office 2024
Microsoft Office 2024
Microsoft Office 2024 Macos
Microsoft SharePoint Server<16.0.19725.20434
Microsoft SharePoint Server=2016
Microsoft SharePoint Server=2019
Microsoft Word=2016
Microsoft Word=2016
Remediation
Event History
Jul 14, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
CVE Published
via MITRE·05:08 PM
Data Sourced
via MITRE·05:08 PM
DescriptionSeverity
Data Sourced
via NVD·06:18 PM
RemedyDescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-55132?
The severity of CVE-2026-55132 is rated high with a score of 7.8.
2
What software is affected by CVE-2026-55132?
CVE-2026-55132 affects Microsoft Word, Microsoft SharePoint Server, and multiple versions of Microsoft Office.
3
How do I fix CVE-2026-55132?
CVE-2026-55132 can be fixed by applying the available patch provided by Microsoft.
4
What type of vulnerability is CVE-2026-55132?
CVE-2026-55132 is a remote code execution vulnerability caused by a double free error in Microsoft Office Word.
5
Can CVE-2026-55132 be exploited remotely?
Yes, an unauthorized attacker can exploit CVE-2026-55132 to execute code locally on vulnerable systems.