What’s Vulnerable › Vulnerabilities

CVE-2020-17122: Microsoft Excel Remote Code Execution Vulnerability

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-12-09 · updated 2026-06-17

Description

Microsoft Excel Remote Code Execution Vulnerability

Affected products

• Microsoft Office: 2010-sp2
• Microsoft Office Web Apps: 2010-sp2
• Microsoft SharePoint Server: 2010-sp2
• Microsoft Office Web Apps 2010 Service Pack 2: from 13.0.0 before publication — fixed in publication
• Microsoft SharePoint Server 2010 Service Pack 2: from 13.0.0.0 before publication — fixed in publication
• Microsoft Office: from 13.0.0.0 before publication — fixed in publication

How to fix

Upgrade to a fixed version: Microsoft Office Web Apps 2010 Service Pack 2 publication; Microsoft SharePoint Server 2010 Service Pack 2 publication; Microsoft Office publication. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-17122
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17122

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