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Microsoft Defender Vulnerability Management vs Nucleus Security comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Feb 23, 2026

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Microsoft Defender Vulnerab...
Ranking in Vulnerability Management
12th
Ranking in Risk-Based Vulnerability Management
6th
Average Rating
8.2
Reviews Sentiment
6.5
Number of Reviews
17
Ranking in other categories
Advanced Threat Protection (ATP) (18th), Microsoft Security Suite (19th)
Nucleus Security
Ranking in Vulnerability Management
50th
Ranking in Risk-Based Vulnerability Management
22nd
Average Rating
0.0
Number of Reviews
0
Ranking in other categories
Application Security Tools (36th)
 

Mindshare comparison

As of February 2026, in the Risk-Based Vulnerability Management category, the mindshare of Microsoft Defender Vulnerability Management is 7.1%, down from 8.2% compared to the previous year. The mindshare of Nucleus Security is 2.7%, up from 2.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Risk-Based Vulnerability Management Market Share Distribution
ProductMarket Share (%)
Microsoft Defender Vulnerability Management7.1%
Nucleus2.7%
Other90.2%
Risk-Based Vulnerability Management
 

Featured Reviews

OB
Microsoft Solutions Manager at Self-Employed
Ensures strong threat and vulnerability management with continuous risk assessment
The major priority is identity, which is crucial; we have lots of companies in manufacturing, energy, or various sectors, and it varies from one to another. I assess Microsoft Defender Vulnerability Management as very effective in continuously assessing vulnerabilities without requiring scans. We use automatic investigation and remediation features, safe attachments, safe links, and real-time reports, which are also very effective. For Active Directory, Defender has threat intelligence, and we are using that. The risk-based prioritization within Vulnerability Management affects my ability to manage vulnerabilities, particularly in relation to the Zero Trust Model utilized by our customers. The end-users often do as they please in their systems.
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Top Industries

By visitors reading reviews
Financial Services Firm
12%
Computer Software Company
10%
Manufacturing Company
8%
Government
8%
Computer Software Company
17%
Financial Services Firm
10%
Healthcare Company
7%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise2
Large Enterprise6
No data available
 

Questions from the Community

What needs improvement with Microsoft Defender Vulnerability Management?
When I create rules, it gave me problems and I did not know where the problem was located. A small pop-up notification indicating how a rule should be configured would be helpful, rather than the p...
What is your primary use case for Microsoft Defender Vulnerability Management?
I do not use Microsoft Defender Vulnerability Management at work. However, I am currently not working, but I do use Microsoft Defender Vulnerability Management on my personal computer.
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Overview

Find out what your peers are saying about Qualys, Tenable, Rapid7 and others in Risk-Based Vulnerability Management. Updated: February 2026.
882,744 professionals have used our research since 2012.