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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
9.6
Reviews Sentiment
7.8
Number of Reviews
6
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
6.5
Number of Reviews
83
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

"Overall, we have seen about eighty-seven percent reduction of the number of vulnerabilities that require urgency to remediate, specifically the number of criticals."
"We are able to see the real risk of a vulnerability on our environment with our security tools."
"Zafran is an excellent tool."
"Zafran has become an indispensable tool in our cybersecurity arsenal."
"We saw benefits from Zafran Security almost immediately after deploying it."
"The main advantage of Microsoft Defender Vulnerability Management is that it can locate and prevent most threats even when the endpoints are not connected to the corporate network, as long as the internet is available."
"Microsoft Defender Vulnerability Management is versatile and assesses vulnerabilities, providing detailed information on CVEs, their categories, and exploit statuses."
"The solution is up-to-date and helps prevent zero-day attacks."
"The solution helps identify threats and vulnerabilities."
"The product's stability is very high...The scalability of the product is amazing."
"A valuable feature is the ease of management and integration with Microsoft products."
"The integration with SIEM is the best, specifically the native integration with Microsoft SIEM."
"The integration with Sentinel has been one of the most valuable features for my organization."
"A valuable feature of the solution is that it is easy to understand."
"We have done code scanning for a long period because as a company, we do DevOps as part of our development life cycle."
"I have found the vulnerability assessment and the reports to be useful."
"It is easy to deploy and easy to use. Its reporting is good. From this reporting, you can see the pain point in your network, which makes it easy to fix them. It is easy to understand the reports and export them."
"I like the fact that it was not expensive. I like that it's user-friendly."
"Ease of reviewing scores, identifying vulnerabilities, and getting information on them."
"The most valuable features of Tenable Nessus are the scanning option. Advanced scanning is highly useful. The offline config audits and application assessments are useful."
"The vulnerability scanner is the most valuable feature."
 

Cons

"The dashboarding and reporting functionality of Zafran Security is an area that definitely could use some improvements."
"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 setup phase of the product is not that easy and needs a person to have a certain level of expertise."
"The general support could be improved."
"There should be risk scoring added to Microsoft Defender Vulnerability Management; specifically, they call it quantification of the risk."
"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."
"Probably my only criticism would be the cost. It is expensive."
"The worst aspect is the refresh rate of the dashboard."
"The constant changes in the product configuration or the console setup can sometimes be challenging."
"We have experienced some logging issues, including a few hours of downtime initially. Despite this, I would rate the overall stability as an eight."
"Tenable Nessus application device assessment is one of the top tools. However, in the application security assessment, there are other tools that provide better, and more accurate findings."
"It would be better if they had application-level support for mobile devices. They don't have anything to scan mobile devices. Tenable Nessus doesn't have a mobile application vulnerability assessment. I also have issues with the false positive rates. The product has limited features."
"They should try to create an all-in-one solution."
"Vulnerability recommendations are outdated and not in line with industry standards."
"The report for counters is too simple and would be improved by a dashboard."
"It would be a good idea if they have a simulation of attacks or a use case for finding a new vulnerability or dealing with a zero-day attack."
"The accuracy of the vulnerability assessment is not up to par yet, as false alarms and false positives occur often."
"The reports are okay, but the interface is a bit difficult to navigate in some cases."
 

Pricing and Cost Advice

Information not available
"The product’s pricing is medium."
"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 licensing model follows a per-user per-month structure."
"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."
"Cost-wise, it's an affordable tool."
"The newer tools are quite pricey. There is a case of some fine tuning that can be done in terms of licensing. The IP based licensing that is offered makes the tool very expensive. If they want the IT industry to adopt it, the price should be looked at."
"The price of Tenable Nessus could improve, it is expensive."
"Nessus Manager is not an expensive product. It has its limitations, but the pricing reflects that. We have a yearly subscription."
"Its pricing is great and can't be improved. It is very cheap. It is less than 2,000 pounds a license, and you can't really ask for more. It has unlimited IPs and unlimited scans. There are no particular pricing constraints. The only additional cost is the inherent cost of the people to actually review the actual scans."
"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."
"While Tenable Nessus is a good enterprise solution, the high price would likely make it prohibitive to smaller organizations."
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Top Industries

By visitors reading reviews
Computer Software Company
11%
Financial Services Firm
11%
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.
863,901 professionals have used our research since 2012.