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Microsoft Defender Vulnerability Management vs Tenable Nessus comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Oct 9, 2024

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

Zafran Security
Sponsored
Ranking in Vulnerability Management
16th
Average Rating
9.6
Reviews Sentiment
7.8
Number of Reviews
6
Ranking in other categories
Continuous Threat Exposure Management (CTEM) (1st)
Microsoft Defender Vulnerab...
Ranking in Vulnerability Management
11th
Average Rating
8.0
Reviews Sentiment
6.9
Number of Reviews
15
Ranking in other categories
Advanced Threat Protection (ATP) (16th), Microsoft Security Suite (20th), Risk-Based Vulnerability Management (5th)
Tenable Nessus
Ranking in Vulnerability Management
1st
Average Rating
8.4
Reviews Sentiment
6.1
Number of Reviews
85
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2025, in the Vulnerability Management category, the mindshare of Zafran Security is 0.9%, up from 0.0% compared to the previous year. The mindshare of Microsoft Defender Vulnerability Management is 2.9%, down from 3.0% compared to the previous year. The mindshare of Tenable Nessus is 8.4%, down from 12.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management
 

Featured Reviews

Israel Cavazos Landini - PeerSpot reviewer
Weekly insights and risk analysis facilitate informed security decisions
I appreciate the weekly insights Zafran provides, which include critical topics for networks and IT security, allowing us to evaluate which insights apply to our environment. The organization score feature is valuable to keep the leadership team updated on how our infrastructure fares security-wise. The applicable risk level versus base risk level feature is beneficial because prior to Zafran, we only used the base risk level, but now understand that risk depends on the asset itself. Zafran is an excellent tool.
NaySan @ Suraj Verma - PeerSpot reviewer
Provides actionable vulnerability insights and recommendations with notable efficiency
They may need to improve the portal refresh rate for Microsoft Defender Vulnerability Management because it takes time for recommendations to disappear after mitigation; sometimes, it takes one week, when it should ideally take only one to two hours. Overall, everything is good with Microsoft Defender Vulnerability Management, but the portal refresh rate can take up to seven days in some cases and three or four days in others to reflect changes.
HarshBhardiya - PeerSpot reviewer
Provided increased visibility across the organization's servers
The user interface of Tenable Nessus feels outdated and could be more user-friendly. Additionally, the documentation is not well-organized, which can be confusing when searching for solutions or specific information related to Tenable Nessus Professional. The reporting feature could be improved by allowing users to create their own templates instead of relying on predefined ones.

Quotes from Members

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

Pros

"Zafran is an excellent tool."
"Overall, we have seen about eighty-seven percent reduction of the number of vulnerabilities that require urgency to remediate, specifically the number of criticals."
"Zafran has become an indispensable tool in our cybersecurity arsenal."
"We saw benefits from Zafran Security almost immediately after deploying it."
"We are able to see the real risk of a vulnerability on our environment with our security tools."
"Microsoft Defender Vulnerability Management is versatile and assesses vulnerabilities, providing detailed information on CVEs, their categories, and exploit statuses."
"The integration with Sentinel has been one of the most valuable features for my organization."
"Microsoft Defender Vulnerability Management is versatile and assesses vulnerabilities, providing detailed information on CVEs, their categories, and exploit statuses."
"A valuable feature is the ease of management and integration with Microsoft products."
"The solution is highly scalable."
"The integration with Sentinel has been one of the most valuable features for my organization."
"The solution is up-to-date and helps prevent zero-day attacks."
"Overall, I would rate Microsoft Defender Vulnerability Management a nine out of ten."
"Nessus gives me a good preview of vulnerabilities and good suggestions for remediation. It's easy to find a description of a given vulnerability and solutions for it."
"Nessus' most valuable feature is vulnerability management because it helps to discover vulnerabilities proactively and integrates with patch management solutions so you can push patches."
"The most valuable feature of Tenable Nessus is vulnerability detection."
"I like this solution because it is complete. It can scan and check many types of vulnerabilities. It can also check for compliance."
"I am impressed with the tool's vulnerability scanning."
"It provides multiple recommendations towards the remedy of vulnerabilities."
"Easy to set up vulnerability scanner with good stability and a responsive technical support team."
"I have experience with it on my attack stations, and it's pretty good to optimize. Personally, I think Nessus is quite a good product."
 

Cons

"I think the ability to have some enhanced reporting capabilities is something they can improve on, as they have good reports but we have asked for some specific reporting enhancements."
"Initially, we were somewhat concerned about the scalability of Zafran due to our large asset count and the substantial amount of information we needed to process."
"The dashboarding and reporting functionality of Zafran Security is an area that definitely could use some improvements."
"There should be risk scoring added to Microsoft Defender Vulnerability Management; specifically, they call it quantification of the risk."
"Integration can be improved."
"The worst aspect is the refresh rate of the dashboard. A vulnerability I patch within 15 minutes takes 24 additional hours for an update."
"Regarding Microsoft's technical support, I would rate it a three out of ten; they could be more responsive and knowledgeable."
"The setup phase of the product is not that easy and needs a person to have a certain level of expertise."
"It is challenging to extract and customize reports from the system."
"Sometimes the stability of the agents could be improved."
"They may need to improve the portal refresh rate for Microsoft Defender Vulnerability Management because it takes time for recommendations to disappear after mitigation; sometimes, it takes one week, when it should ideally take only one to two hours."
"There is room, overall, for improvement in the way it groups the workstations and the way it detects, when the vulnerability is scanned. Even when we would run a new scan, if it was an already existing vulnerability, it wouldn't put a new date on it."
"The product could have unique features similar to one of its competitors."
"The reporting could be improved. The reporting in Rapid7 is much better."
"I think the reporting templates could be improved with Tenable Nessus."
"We would like to have the option of using the solution for the cloud as well as on-premises with the same license at the same time. That would be very helpful."
"Tenable Nessus could improve by having more steady updates which will reduce the vulnerabilities."
"This is still a maturing product. Tenable is only a scanner for one ability, while other solutions like Rapid7 have more tools for verification. We still have to manually verify to see if the vulnerability is a false positive or not."
"Vulnerability recommendations are outdated and not in line with industry standards."
 

Pricing and Cost Advice

Information not available
"The licensing model follows a per-user per-month structure."
"The tool is a bit costly."
"I rate the product's price a three on a scale of one to ten, where one is a low price, and ten is a high price."
"The licensing costs are reasonable."
"The product’s pricing is medium."
"The product pricing is dynamic and varies based on the specific needs of each project and customer."
"There is an annual license required to use this solution."
"The solution has free options."
"When comparing the price of Tenable Nessus to other similar solutions, such as Acunetix, Tenable Nessus is not as expensive. It is averagely priced in the market. We pay for the solution annually."
"Nessus is affordable, but its licensing model could be improved with more flexibility for adding assets."
"The product is free."
"I rate the product's price seven or eight on a scale of one to ten, where one is low price and ten is high price."
"This solution is affordable."
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Top Industries

By visitors reading reviews
Financial Services Firm
10%
Computer Software Company
10%
Manufacturing Company
7%
Healthcare Company
6%
Financial Services Firm
12%
Computer Software Company
12%
Government
9%
Manufacturing Company
7%
Computer Software Company
12%
Financial Services Firm
11%
Manufacturing Company
10%
Government
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for Zafran Security?
Since we stood Zafran Security up in our private cloud, we handle the maintenance on our side. As we opted not to use...
What needs improvement with Zafran Security?
In terms of areas for improvement, Zafran Security is doing a really great job as a new and emerging company. Oftenti...
What is your primary use case for Zafran Security?
My use cases for Zafran Security revolve around two primary areas. One is around vulnerability management and priorit...
What is your experience regarding pricing and costs for Microsoft Defender Vulnerability Management?
I would rate the price as a three for us due to the partnership discounts. For non-partners, however, the cost could ...
What needs improvement with Microsoft Defender Vulnerability Management?
I have not thought about improvements for Microsoft Defender Vulnerability Management as of now, but this is typicall...
How would you choose between Rapid7 InsightVM and Tenable Nessus?
You have full visibility across cloud, network, virtual, and containerized infrastructures with Rapid7 Insight VM. Yo...
What's the difference between Tenable Nessus and Tenable.io Vulnerability Management?
Tenable Nessus is a vulnerability assessment solution that is both easy to deploy and easy to manage. The design of ...
What do you like most about Tenable Nessus?
We have around 500 virtual machines. Therefore, we conduct monthly scans and open tickets for our developers to addre...
 

Overview

 

Sample Customers

Information Not Available
Information Not Available
Bitbrains, Tesla, Just Eat, Crosskey Banking Solutions, Covenant Health, Youngstown State University
Find out what your peers are saying about Microsoft Defender Vulnerability Management vs. Tenable Nessus and other solutions. Updated: July 2025.
865,295 professionals have used our research since 2012.