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CVE-2026-55036
HIGH
CVSS: 7.8
Published: 2026-07-14
Modified: 2026-07-16
Description
Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Affected Platforms
Microsoft 365 AppsMicrosoft Office Online ServerMicrosoft ExcelMicrosoft Microsoft 365Microsoft Office 2021Microsoft Office 2024Microsoft Office 2019