High severity7.8NVD Advisory· Published Jun 8, 2021· Updated Jun 17, 2026
CVE-2021-31939
CVE-2021-31939
Description
Microsoft Excel Remote Code Execution Vulnerability
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
14cpe:2.3:a:microsoft:office:2013:sp1:*:*:*:*:*:*+ 5 more
- cpe:2.3:a:microsoft:office:2013:sp1:*:*:*:*:*:*
- cpe:2.3:a:microsoft:office:2013:sp1:*:*:rt:*:*:*
- cpe:2.3:a:microsoft:office:2016:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:office:2016:*:*:*:*:*:x86:*range: 16.0.0
- cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:office:2021:*:*:*:ltsc:*:*:*range: https://aka.ms/OfficeSecurityReleases
- cpe:2.3:a:microsoft:office_online_server:-:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:office_web_apps_server:2013:sp1:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
2- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31939nvdPatchVendor Advisory
- www.zerodayinitiative.com/advisories/ZDI-21-670/nvdThird Party Advisory
News mentions
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