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High severity7.8NVD Advisory· Published Jul 14, 2026· Updated Jul 15, 2026

CVE-2026-55130

CVE-2026-55130

Description

Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.

Affected products

14
  • 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/Office6 versions
    cpe:2.3:a:microsoft:office_2019:-:*:*:*:*:*:x64:*+ 5 more
    • 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_2024:-:*:*:*:ltsc:-:x64:*
    • cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-: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:*:*:*:*:*:*:*
  • 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

Patches

Vulnerability mechanics

References

1

News mentions

0

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