VYPR
High severity7.8NVD Advisory· Published Dec 15, 2021· Updated May 19, 2026

CVE-2021-43256

CVE-2021-43256

Description

Microsoft Excel Remote Code Execution Vulnerability

Affected products

20
  • Microsoft/365 Appsv53 versions
    cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:*:*+ 2 more
    • cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:*:*range: 16.0.1
    • cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:*
    • cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:*
  • Microsoft/Excelv57 versions
    cpe:2.3:a:microsoft:excel:2013:sp1:*:*:rt:*:*:*+ 6 more
    • cpe:2.3:a:microsoft:excel:2013:sp1:*:*:rt:*:*:*range: 15.0.0.0
    • cpe:2.3:a:microsoft:excel:2013:sp1:*:*:*:*:x64:*
    • cpe:2.3:a:microsoft:excel:2013:sp1:*:*:*:*:x86:*
    • cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:x64:*
    • cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:x86:*
    • cpe:2.3:a:microsoft:excel_rt:2013:sp1:*:*:*:*:*:*
    • (no CPE)
  • Microsoft/Officev54 versions
    cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:*:*+ 3 more
    • cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:*:*range: 19.0.0
    • cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:x64:*
    • cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:x86:*
    • cpe:2.3:a:microsoft:office:2021:*:*:*:ltsc:*:*:*range: https://aka.ms/OfficeSecurityReleases
  • cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:*:*:*range: 16.0.1
    • cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:*:x64:*
    • cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:*:x86:*
  • cpe:2.3:a:microsoft:office_online_server:-:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:office_web_apps:2013:sp1:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:microsoft:office_web_apps:2013:sp1:*:*:*:*:*:*
    • cpe:2.3:a:microsoft:office_web_apps_server:2013:sp1:*:*:*:*:*:*range: 15.0.1

Patches

Vulnerability mechanics

References

1

News mentions

0

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