CVE-2021-28474 — Interpretation Conflict in Microsoft Sharepoint Enterprise Server 2016

CWE-436 — Interpretation ConflictCWE-77 — Command Injection8 documents6 sources
Severity
8.8HIGHNVD
EPSS
18.0%
top 4.83%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
Microsoft Sharepoint Enterprise Server 2016Microsoft Sharepoint Foundation 2013 Service Pack 1Microsoft Sharepoint Server 2019+2 more
Timeline
PublishedMay 11
Latest updateJul 21

Description

Microsoft SharePoint Server Remote Code Execution Vulnerability

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages5 packages

▶CVEListV5microsoft/microsoft_sharepoint_server_201916.0.0 — 16.0.10374.20000
▶CVEListV5microsoft/microsoft_sharepoint_enterprise_server_201616.0.0 — 16.0.5161.1000
▶NVDmicrosoft/sharepoint_server2016, 2019+1

Patches

Patch: portal.msrc.microsoft.com ↗Patch: portal.msrc.microsoft.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-f4c7-7cmx-q7fx: Microsoft SharePoint Server Remote Code Execution Vulnerability↗2022-05-24
▶
CVEList
Microsoft SharePoint Server Remote Code Execution Vulnerability↗2021-05-11
▶

🔍Detection Rules

1
Suricata
ET WEB_SPECIFIC_APPS Microsoft Sharepoint WebPartPages Authenticated Remote Code Execution (CVE-2021-28474)↗2025-07-21
▶

📋Vendor Advisories

1
Microsoft
Microsoft SharePoint Server Remote Code Execution Vulnerability↗2021-05-11
▶

🕵️Threat Intelligence

3
Trendmicro
SharePoint Remote Code Execution Interpretation Conflict↗2021-07-08
▶
Trendmicro
SharePoint Remote Code Execution Interpretation Conflict↗2021-07-08
▶
Trendmicro
SharePoint Remote Code Execution Interpretation Conflict↗2021-07-08
▶
CVE-2021-28474 — Interpretation Conflict in Microsoft | cvebase