CVE-2021-26418 — Authentication Bypass by Spoofing in Microsoft Sharepoint Enterprise Server 2016

CWE-290 — Authentication Bypass by SpoofingCWE-863 — Incorrect Authorization4 documents4 sources
Severity
7.1HIGHNVD
CNA4.6
EPSS
0.9%
top 24.15%
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 updateMay 24

Description

Microsoft SharePoint Server Spoofing Vulnerability

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:NExploitability: 2.8 | Impact: 4.2

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-h9wj-h268-pfrp: Microsoft SharePoint Spoofing Vulnerability This CVE ID is unique from CVE-2021-28478, CVE-2021-31172↗2022-05-24
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CVEList
Microsoft SharePoint Server Spoofing Vulnerability↗2021-05-11
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📋Vendor Advisories

1
Microsoft
Microsoft SharePoint Server Spoofing Vulnerability↗2021-05-11
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CVE-2021-26418 — Authentication Bypass by Spoofing | cvebase