Medium severity4.3NVD Advisory· Published May 12, 2026· Updated Jun 1, 2026

CVE-2026-40421

Description

Files or directories accessible to external parties in Microsoft Office Word allows an unauthorized attacker to disclose information locally.

Microsoft/365 Apps2 versions
cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:*+ 1 more
- cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:*
- cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:*
Microsoft/Office4 versions
cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:x64:*+ 3 more
- cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:x64:*
- cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:x86:*
- cpe:2.3:a:microsoft:office:2024:*:*:*:ltsc:*:x64:*
- cpe:2.3:a:microsoft:office:2024:*:*:*:ltsc:*:x86:*
Microsoft/Office Long Term Servicing Channel2 versions
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:*:x64:*+ 1 more
- cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:*:x64:*
- cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:*:x86:*
Microsoft/Word2 versions
cpe:2.3:a:microsoft:word:2016:*:*:*:*:*:x64:*+ 1 more
- cpe:2.3:a:microsoft:word:2016:*:*:*:*:*:x64:*
- cpe:2.3:a:microsoft:word:2016:*:*:*:*:*:x86:*
Microsoft/Office Wordllm-fuzzy