CVE-2026-102858
Microsoft Office OneNote Remote Code Execution Vulnerability
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
Heap-based buffer overflow in Microsoft Office OneNote allows an unauthorized attacker to execute code over a network.
| Vendor | microsoft |
| Product | microsoft office 365 for mac |
| Ecosystems | |
| Industries | TechnologyEnterprise |
| Published | Oct 13, 2026 |
| Last Updated | Oct 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Microsoft / Microsoft Office 365 for Mac
1.0.0 < publication
Microsoft / Microsoft Office LTSC for Mac 2021
16.0.1 < publication
Microsoft / Microsoft Office LTSC for Mac 2024
16.0.0 < publication