What’s Vulnerable › Vulnerabilities

CVE-2020-17066: Microsoft Excel Remote Code Execution Vulnerability

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-11-11 · updated 2026-06-17

Description

Microsoft Excel Remote Code Execution Vulnerability

Affected products

• Microsoft Excel 2013 Service Pack 1: 2010-sp2
• Microsoft Excel 2013 Service Pack 1: from 13.0.0.0 before publication — fixed in publication

How to fix

Upgrade to a fixed version: Microsoft Excel 2013 Service Pack 1 publication. Check the vendor advisory for mitigations.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17066
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17066

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