CVE-2020-0931Network attack vector

Authenticated code execution via ExcelDataSet deserialization

Published Apr 15, 2020 · Updated Aug 4, 2024

Remote code execution in Microsoft SharePoint 2010 SP2, 2013 SP1, 2016, and 2019 allows remote authenticated users to run arbitrary code. The PerformancePoint Scorecards client module instantiates an ExcelDataSet control that deserializes untrusted data from application-package source markup. Authentication and permission to upload a crafted SharePoint application package are required, and code runs in the SharePoint web-server process.

CVSS severity8.8
High
EPSS probability10.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Remote code execution in Microsoft SharePoint 2010 SP2, 2013 SP1, 2016, and 2019 allows remote authenticated users to run arbitrary code. The PerformancePoint Scorecards client module instantiates an ExcelDataSet control that deserializes untrusted data from application-package source markup. Authentication and permission to upload a crafted SharePoint application package are required, and code runs in the SharePoint web-server process.

The record

CVE
CVE-2020-0931
Published
Apr 15, 2020
Updated
Aug 4, 2024
Vendor
Microsoft
Product
Microsoft Business Productivity Servers
Classifications
CWE-434, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2010 Service Pack 2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Microsoft · Microsoft Business Productivity Serversversion=2010 Service Pack 2
Microsoft · Microsoft SharePoint Serverversion=2019
Microsoft · Microsoft SharePoint Foundationversion=2013 Service Pack 1
Microsoft · Microsoft SharePoint Enterprise Serverversion=2013 Service Pack 1; version=2016

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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