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CVE-2026-63533
HIGH
CVSS: 7.8
Published: 2026-08-11
Modified: 2026-08-14
Description
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
Affected Platforms
Microsoft Office 2016Microsoft 365 AppsMicrosoft Microsoft 365Microsoft Office 2021Microsoft Office 2024Microsoft Office 2019