CyberICT

CVE-2026-78439

Microsoft · Published September 8, 2026

CVSS v3.1

HIGH
Patch availableGet patch

Description

Microsoft Office Graphics Component Remote Code Execution Vulnerability. Stack-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code over a network.

Affected Products

  • Microsoft Office LTSC for Mac 2021
  • Microsoft Office for Android
  • Microsoft Office LTSC for Mac 2024
  • Microsoft Office 365 for Mac

CVSS Vector

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