Back to vendor advisories
Microsoft Security Response CenterCVE-2026-70276

Microsoft Office Click-To-Run Elevation of Privilege Vulnerability

HighVendor CVSS 7.0 / 10 1 CVE Published Oct 13, 2026 at 7:00 AM UTC

Summary

Use after free in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges locally.

Products covered

  • Microsoft Office LTSC 2021 for 64-bit editions

  • Microsoft Office LTSC 2021 for 32-bit editions

  • Microsoft Office LTSC 2024 for 64-bit editions

  • Microsoft Office LTSC 2024 for 32-bit editions

  • Microsoft 365 Apps for Enterprise for 64-bit Systems

  • Microsoft 365 Apps for Enterprise for 32-bit Systems

Remediation

Release Notes

Vendor-listed fixes

  • 16.0.14334.20974

  • 16.0.17932.21056

  • https://aka.ms/OfficeSecurityReleases

CVEs in this advisory 1

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Confirmed at the source

    Our collector saw this advisory during a later source check.