Is CVE-2022-21987 in the CISA KEV catalog?

No. CVE-2022-21987 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-21987?

CVE-2022-21987 has a CVSS v3 base score of 8.0 (HIGH).

What is the EPSS score for CVE-2022-21987?

CVE-2022-21987 has an EPSS score of 2.02% (79th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-21987?

Install KB5002120 for Microsoft SharePoint Enterprise Server 2013 Service Pack 1. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2022-21987

HIGHEPSS 79th pctl

8.0

CVSS v3

NVD

Description

Microsoft SharePoint Server Spoofing Vulnerability

How to fix

Remediation Available

Microsoft SharePoint Enterprise Server 2013 Service Pack 1Microsoft

Install:KB5002120Microsoft

Microsoft SharePoint Enterprise Server 2016Microsoft

Install:KB5002136Microsoft

Microsoft SharePoint Server 2019Microsoft

Install:KB5002135Microsoft

Microsoft SharePoint Server Subscription EditionMicrosoft

Install:KB5002145Microsoft

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

2.02%probability of exploitation in 30 days

79thpercentile

Elevated risk: more likely to be exploited than 79% of all known CVEs.

References

Other references1

msrc.microsoft.com

Embed a live status badge for CVE-2022-21987

Markdown

[![CVE-2022-21987](https://tridentstack.com/cve/badge/CVE-2022-21987.svg)](https://tridentstack.com/cve/CVE-2022-21987)

HTML

<a href="https://tridentstack.com/cve/CVE-2022-21987"><img src="https://tridentstack.com/cve/badge/CVE-2022-21987.svg" alt="CVE-2022-21987"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.