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CVE PROGRAM SOURCE RECORD8.8 High

CVE-2026-78526

Microsoft Office Word Remote Code Execution Vulnerability

Description

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

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Microsoft Microsoft 365 Apps for Enterprise

  • 16.0.1 to < 16.0.20326.20138affected

Microsoft Microsoft Office 2016

  • 16.0.0 to < 16.0.5569.1002affected

Microsoft Microsoft Office 2019

  • 19.0.0 to < 16.0.10417.20207affected

Microsoft Microsoft Office 365 for Mac

  • 1.0.0 to < 16.113.26091433affected

Microsoft Microsoft Office LTSC 2021

  • 16.0.1 to < 16.0.14334.20906affected

Microsoft Microsoft Office LTSC 2024

  • 16.0.0 to < 16.0.17932.20976affected

Microsoft Microsoft Office LTSC for Mac 2021

  • 16.0.1 to < 16.113.26091433affected

Microsoft Microsoft Office LTSC for Mac 2024

  • 16.0.0 to < 16.113.26091433affected

References