CVE-2020-1102

Name: CVE-2020-1102
Creator: NVD / NIST
Published: 2020-05-21T23:15:14.4+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 15.13%

Last modified Jun 17, 2026

CVE-2020-1102 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package, aka 'Microsoft SharePoint Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-1023, CVE-2020-1024.. EPSS estimates a 15.13% chance of exploitation in the next 30 days.

Description

A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package, aka 'Microsoft SharePoint Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-1023, CVE-2020-1024.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

15.13%

96.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Microsoft	Sharepoint Enterprise Server	2016
Microsoft	Sharepoint Server	2019

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1102Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1102Patch, Vendor Advisory

Timeline

Published: May 21, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-1102?

How severe is CVE-2020-1102?

CVE-2020-1102 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 15.13% probability of exploitation in the next 30 days.

How do I fix CVE-2020-1102?

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-2020-1102?

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

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Source: NVD / NIST