CVE-2026-102858: Heap-based buffer overflow in Microsoft Office OneNote allows an unauthorized attacker to execute code over a network.

PriorityP357high8.8CVSS 3.1

AVNACLPRNUIRSUCHIHAH

EPSS

0.72%

53.4th percentile

Heap-based buffer overflow in Microsoft Office OneNote allows an unauthorized attacker to execute code over a network.

Affected

3 ranges

Vendor	Product	Version range	Fixed in
microsoft	microsoft_office_365_for_mac	>= 1.0.0 < 16.114.26101123	16.114.26101123
microsoft	microsoft_office_ltsc_for_mac_2021	>= 16.0.1 < 16.114.26101123	16.114.26101123
microsoft	microsoft_office_ltsc_for_mac_2024	>= 16.0.0 < 16.114.26101123	16.114.26101123

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