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Microsoft Security Response CenterCVE-2026-102867

Microsoft Office Word Information Disclosure Vulnerability

HighVendor CVSS 6.5 / 10 1 CVE Published Oct 13, 2026 at 7:00 AM UTC

Summary

Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.

Products covered

  • 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

  • Microsoft Office LTSC 2021 for 32-bit editions

  • Microsoft Office LTSC 2024 for 32-bit editions

  • Microsoft Office LTSC 2024 for 64-bit editions

Remediation

Release Notes

Vendor-listed fixes

  • https://aka.ms/OfficeSecurityReleases

  • 16.0.14334.20974

  • 16.0.17932.21056

CVEs in this advisory 1

Update history

What changed in later vendor updates

SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.

    • Severity changed from Low to High.

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.