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Medium severity5.5NVD Advisory· Published Jul 14, 2026· Updated Jul 16, 2026

CVE-2026-55028

CVE-2026-55028

Description

Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.

Affected products

17
  • Microsoft/Officellm-fuzzy9 versions
    (expand)+ 8 more
    • (no CPE)
    • cpe:2.3:a:microsoft:office_2019:-:*:*:*:*:*:x64:*
    • cpe:2.3:a:microsoft:office_2019:-:*:*:*:*:*:x86:*
    • cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:-:x64:*
    • cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:-:x86:*
    • cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:macos:-:*
    • cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x64:*
    • cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x86:*
    • cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:macos:-:*
  • 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/Microsoft 365
    cpe:2.3:a:microsoft:microsoft_365:-:*:*:*:*:macos:*:*
  • Microsoft/Office 20162 versions
    cpe:2.3:a:microsoft:office_2016:-:*:*:*:-:*:x64:*+ 1 more
    • cpe:2.3:a:microsoft:office_2016:-:*:*:*:-:*:x64:*
    • cpe:2.3:a:microsoft:office_2016:-:*:*:*:-:*:x86:*
  • Microsoft/Sharepoint Server3 versions
    cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:*+ 2 more
    • cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:*range: <16.0.19725.20434
    • cpe:2.3:a:microsoft:sharepoint_server:2016:*:*:*:enterprise:*:*:*
    • cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

1

News mentions

0

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