CyberICT

CVE-2026-70254

Microsoft · Published October 13, 2026

CVSS v3.1

HIGH
Patch availableGet patch

Description

Microsoft Office Excel Remote Code Execution Vulnerability. Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

Affected Products

  • Microsoft Office 365 for Mac
  • Microsoft 365 Apps for Enterprise for 32-bit Systems
  • Microsoft 365 Apps for Enterprise for 64-bit Systems
  • Microsoft Office LTSC 2021 for 64-bit editions

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