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Description

Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to execute code locally.

PUBLISHED Reserved 2025-12-04 | Published 2026-01-13 | Updated 2026-02-22 | Assigner microsoft




HIGH: 8.4CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Problem types

CWE-125: Out-of-bounds Read

Product status

16.0.1 (custom) before https://aka.ms/OfficeSecurityReleases
affected

16.0.1 (custom) before 16.105.26011018
affected

16.0.0 (custom) before 16.105.26011018
affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20944 (Microsoft Word Remote Code Execution Vulnerability) vendor-advisory patch

cve.org (CVE-2026-20944)

nvd.nist.gov (CVE-2026-20944)

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