CVE-2021-42320

HIGH

Microsoft SharePoint Server - Authentication Bypass by Spoofing

Title source: llm

Microsoft SharePoint Server Spoofing Vulnerability

Core 1

Core References

Patch, Vendor Advisory x_refsource_misc

CVSS v3 8.0

EPSS 0.0152

EPSS Percentile 71.2%

Attack Vector NETWORK

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

CWE

CWE-290

Status published

Products (3)

microsoft/sharepoint_enterprise_server 2016

microsoft/sharepoint_server

microsoft/sharepoint_server 2019

Published Dec 15, 2021

Tracked Since Feb 18, 2026