CVE-2026-55132: Double free in Microsoft Office Word allows an unauthorized attacker to execute code locally.

PriorityP343high7.8CVSS 3.1

AVLACLPRNUIRSUCHIHAH

Double free in Microsoft Office Word allows an unauthorized attacker to execute code locally.

Affected

11 ranges

Vendor	Product	Version range	Fixed in
microsoft	microsoft_365_apps_for_enterprise	>= 16.0.1 < https://aka.ms/OfficeSecurityReleases	https://aka.ms/OfficeSecurityReleases
microsoft	microsoft_office_2019	>= 19.0.0 < https://aka.ms/OfficeSecurityReleases	https://aka.ms/OfficeSecurityReleases
microsoft	microsoft_office_365_for_mac	>= 1.0.0 < 16.111.26071215	16.111.26071215
microsoft	microsoft_office_ltsc_2021	>= 16.0.1 < https://aka.ms/OfficeSecurityReleases	https://aka.ms/OfficeSecurityReleases
microsoft	microsoft_office_ltsc_2024	>= 16.0.0 < https://aka.ms/OfficeSecurityReleases	https://aka.ms/OfficeSecurityReleases
microsoft	microsoft_office_ltsc_for_mac_2021	>= 16.0.1 < 16.111.26071215	16.111.26071215
microsoft	microsoft_office_ltsc_for_mac_2024	>= 16.0.0 < 16.111.26071215	16.111.26071215
microsoft	microsoft_sharepoint_enterprise_server_2016	>= 16.0.0 < 16.0.5561.1001	16.0.5561.1001
microsoft	microsoft_sharepoint_server_2019	>= 16.0.0 < 16.0.10417.20175	16.0.10417.20175
microsoft	microsoft_sharepoint_server_subscription_edition	>= 16.0.0 < 16.0.19725.20434	16.0.19725.20434
microsoft	microsoft_word_2016	>= 16.0.1 < 16.0.5561.1000	16.0.5561.1000

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