CVE-2020-17066

Name: CVE-2020-17066
Creator: NVD / NIST
Published: 2020-11-11T07:15:17.59+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 3.82%

Last modified Jun 17, 2026

CVE-2020-17066 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Microsoft Excel Remote Code Execution Vulnerability. EPSS estimates a 3.82% chance of exploitation in the next 30 days.

Description

Microsoft Excel Remote Code Execution Vulnerability

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

3.82%

88.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions	Update
Microsoft	Excel	2010	Sp2

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17066Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17066Patch, Vendor Advisory

Timeline

Published: Nov 11, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-17066?

Microsoft Excel Remote Code Execution Vulnerability

How severe is CVE-2020-17066?

CVE-2020-17066 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 3.82% probability of exploitation in the next 30 days.

How do I fix CVE-2020-17066?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-17066?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST