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7.8

Microsoft Excel allows attackers to run malicious code remotely

CVE-2020-17122 · published 5 years ago
Summary

An attacker can exploit a flaw in Microsoft Excel to run unauthorized code on a victim's computer. This could lead to sensitive data theft or system compromise. Users should update Microsoft Excel to the latest version to fix this issue.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
microsoft office 2010
cpe:2.3:a:microsoft:office:2010:sp2:*:*:*:*:*:*
microsoft office_web_apps 2010
cpe:2.3:a:microsoft:office_web_apps:2010:sp2:*:*:*:*:*:*
microsoft sharepoint_server 2010
cpe:2.3:a:microsoft:sharepoint_server:2010:sp2:*:*:*:*:*:*
Original advisory text
Microsoft Excel Remote Code Execution Vulnerability
Microsoft Excel Remote Code Execution Vulnerability
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker full control (estimated)
Severity
7.8 High
Exploitation
4% chance of attack within 30 days
Timeline
Published10 Dec 2020
Updated4 Nov 2026
First seen7 Mar 2026
Sources
CVE-2020-17122 · NVD
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