CVE-2026-47642: Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

PriorityP344high7.8CVSS 3.1

AVLACLPRNUIRSUCHIHAH

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

Affected

8 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	office_online_server	>= 16.0.0.0 < 16.0.10417.20175	16.0.10417.20175

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