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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
18th
Average Rating
9.4
Reviews Sentiment
8.2
Number of Reviews
5
Ranking in other categories
Continuous Threat Exposure Management (CTEM) (2nd)
Microsoft Defender Vulnerab...
Ranking in Vulnerability Management
12th
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
3rd
Average Rating
8.4
Reviews Sentiment
7.3
Number of Reviews
81
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of July 2025, in the Vulnerability Management category, the mindshare of Zafran Security is 0.8%, up from 0.0% compared to the previous year. The mindshare of Microsoft Defender Vulnerability Management is 3.0%, up from 3.0% compared to the previous year. The mindshare of Tenable Nessus is 8.8%, down from 13.0% 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

"We are able to see the real risk of a vulnerability on our environment with our security tools."
"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."
"Zafran is an excellent tool."
"Microsoft Defender Vulnerability Management provides regular advisories and recommendations that help improve our security posture."
"Microsoft Defender Vulnerability Management is a good product, and I believe it deserves a positive recommendation."
"The product's stability is very high...The scalability of the product is amazing."
"The solution is up-to-date and helps prevent zero-day attacks."
"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 recommendations, scores, and steps to remediate actions are highly useful."
"Overall, I would rate Microsoft Defender Vulnerability Management a nine out of ten."
"With the Tenable Nessus enterprise edition, you have unlimited licenses to scan the device."
"We have done code scanning for a long period because as a company, we do DevOps as part of our development life cycle."
"Its initial setup was simple and straightforward."
"Once you get past the initial implementation, the solution is very stable."
"It's scalable."
"I have found the vulnerability assessment and the reports to be useful."
"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."
"Security is the key number because it can start to scan with a few clicks instead of credits, which is a bit complicated. So simplicity is the first advantage. Then the generated reports are well done and easy to present to management. The quality of the scan is quite good in detecting the severity. The solution has simplicity. Also, it has frequent updates so that is also a valuable feature."
 

Cons

"The dashboarding and reporting functionality of Zafran Security is an area that definitely could use some improvements."
"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."
"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."
"Sometimes the stability of the agents could be improved."
"The automated remediations can be more specific."
"It is expensive."
"There should be risk scoring added to Microsoft Defender Vulnerability Management; specifically, they call it quantification of the risk."
"Integration can be improved."
"There is a good solution from Microsoft, however, there is a gap between Windows and Linux management."
"We have experienced some logging issues, including a few hours of downtime initially. Despite this, I would rate the overall stability as an eight."
"The setup phase of the product is not that easy and needs a person to have a certain level of expertise."
"EQA's and dashboards should be addressed in the next release."
"Multiple steps to create an actionable plan will be a great addition to Nessus."
"The interface is a little bit clunky, and the reporting is not marvelous. There should be better integration of reporting between instances. Currently, the instance stands alone, and it produces a report. Being able to amalgamate those reports with another instance will be useful."
"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."
"The user interface of Tenable Nessus feels outdated and could be more user-friendly."
"The professional version is not very scalable."
"You can scale Nessus to the extent that you can afford it. You need to have a license for every device you scan. As long as you can afford the increased costs, you won't have a problem scaling it."
"The scalability of Tenable Nessus is good. However, it could be more flexible."
 

Pricing and Cost Advice

Information not available
"The product’s pricing is medium."
"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 model follows a per-user per-month structure."
"The licensing costs are reasonable."
"The tool is a bit costly."
"The cost is around $4,300 per year. Use is unlimited. You don't pay more if you want to use it for another IP."
"Nowadays, your vulnerability applications are going to be kind of pricey because lots of them, including Rapid7, are based upon a base price, but then they add in the nodes. That's where they get you. If you're a big network, obviously, you need to scan everything. Therefore, it's going to be costly. The risk and insurance money associated with having ransomware on my networks is going to cost me more money, time, and marketing than the price of the tool. That's why I'm speaking only as an information security officer to security operations. This is the tool that is there in my toolbox to say whether we vulnerable or not. At this point, I don't care about how much it costs my company to have it because if I wasn't able to report it and we got ransomware, then who cares? I'm probably going to be out of business because it happened. That's why I don't care about the price. I have it, and I could use it effectively and do my report. At the end of the day, even if we get ransomware, as long as I reported it, followed my protocol, and put in the change, irrespective of whether it was ignored or denied, I did my job."
"We pay approximately $2,500 on a yearly basis."
"The solution has a single price for unlimited assets."
"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."
"Tenable Nessus is affordable."
"One problem with Tenable is its pricing policy. Optimal results can be achieved with Greenbone Solutions which has much more friendly pricing policies."
"We incurred a single cost for a perpetual license, although I cannot comment on the price as this is above my management level."
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Top Industries

By visitors reading reviews
Computer Software Company
12%
Financial Services Firm
11%
Manufacturing Company
7%
Healthcare Company
6%
Computer Software Company
12%
Financial Services Firm
12%
Government
9%
Manufacturing Company
7%
Educational Organization
19%
Computer Software Company
11%
Financial Services Firm
9%
Government
8%
 

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?
The current pricing of Zafran Security is fair overall. They were good to work with to accommodate our organization w...
What needs improvement with Zafran Security?
The dashboarding and reporting functionality of Zafran Security is an area that definitely could use some improvement...
What is your primary use case for Zafran Security?
Zafran Security is helping reduce the amount of critical vulnerabilities in our environments that require prompt reme...
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: June 2025.
860,168 professionals have used our research since 2012.