CVE-2026-63528: Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.

PriorityP427medium5.5CVSS 3.1

AVLACLPRNUIRSUCHINAN

EPSS

0.34%

27.0th percentile

Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.

Affected

9 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 < 16.112.26081010	16.112.26081010
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 < 16.112.26081010	16.112.26081010
microsoft	microsoft_office_ltsc_for_mac_2024	>= 16.0.0 < 16.112.26081010	16.112.26081010
microsoft	microsoft_word_2016	>= 16.0.1 < 16.0.5565.1000	16.0.5565.1000
microsoft	word	—	—

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