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CVE-2020-1181

61
FAUCET Score

CVE-2020-1181 describes a remote code execution vulnerability in Microsoft SharePoint Server, SharePoint Foundation, and SharePoint Enterprise Server. This flaw arises from the server's failure to properly identify and filter unsafe ASP.Net web controls. It carries a CVSS score of 8.8 (HIGH), indicating a network-based attack with low privileges, no user interaction required, and high impact on confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, its high EPSS score and FAUCET Risk Score suggest a significant threat. Although no public exploit code (Metasploit, Nuclei, ExploitDB) is readily available, community discussion, including a Reddit post with a step-by-step Proof of Concept, indicates active interest and potential for exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
2016CPE matchmatch criteria
cpe:2.3:a:microsoft:sharepoint_enterprise_server:2016:*:*:*:*:*:*:*
2010CPE matchmatch criteria
cpe:2.3:a:microsoft:sharepoint_foundation:2010:sp2:*:*:*:*:*:*
2013CPE matchmatch criteria
cpe:2.3:a:microsoft:sharepoint_foundation:2013:sp1:*:*:*:*:*:*
2019CPE matchmatch criteria
cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
69.30%
Probability of exploitation in next 30 days
EPSS Percentile
99.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.6930 is in the 99th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Microsoft SharePoint Enterprise Server 2016
View patch
microsoftpatch availablevia msrc
Product: Microsoft SharePoint Server 2019
View patch
microsoftpatch availablevia msrc
Product: Microsoft SharePoint Foundation 2010 Service Pack 2
View patch
microsoftpatch availablevia msrc
Product: Microsoft SharePoint Foundation 2013 Service Pack 1
View patch

Vendor Advisories (1)

microsoft2020-Jun/CVE-2020-1181Critical

Microsoft SharePoint Server Remote Code Execution Vulnerability

Jun 9, 2020

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2020-1181
PatchVendor Advisory
zerodayinitiative.com / advisories/ZDI-20-694
Third Party AdvisoryVDB Entry