PT-2026-111943 · Microsoft · Office 365 For Mac+2

CVE-2026-102858

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Published

2026-10-13

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Updated

2026-10-13

CVSS v3.1

8.8

High

VectorAV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Heap-based buffer overflow in Microsoft Office OneNote allows an unauthorized attacker to execute code over a network.

Fix

Heap Based Buffer Overflow

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Weakness Enumeration

CWE-122

Related Identifiers

CVE-2026-102858

Affected Products

Office 365 For Mac
Office Ltsc For Mac 2021
Office Ltsc For Mac 2024