CVE-2020-17129

Name: CVE-2020-17129
Creator: NVD / NIST
Published: 2020-12-10T00:15:15.213+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 2.98%

Last modified Jun 17, 2026

CVE-2020-17129 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Microsoft Excel Remote Code Execution Vulnerability. EPSS estimates a 2.98% 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

2.98%

85.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions	Update
Microsoft	365 Apps	All versions	—
Microsoft	Excel	2010	Sp2
Microsoft	Excel	2013	Sp1
Microsoft	Excel	2016	—
Microsoft	Office	2019	—
Microsoft	Office Online Server	All versions	—
Microsoft	Office Web Apps	2013	Sp1

References

Timeline

Published: Dec 10, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-17129?

Microsoft Excel Remote Code Execution Vulnerability

How severe is CVE-2020-17129?

CVE-2020-17129 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 2.98% probability of exploitation in the next 30 days.

How do I fix CVE-2020-17129?

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-2020-17129?

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

Scan your code now

Source: NVD / NIST