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Qualys VMDR vs Tenable Nessus comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Apr 6, 2025

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
27th
Average Rating
9.6
Reviews Sentiment
8.1
Number of Reviews
2
Ranking in other categories
Continuous Threat Exposure Management (CTEM) (6th)
Qualys VMDR
Ranking in Vulnerability Management
2nd
Average Rating
8.4
Reviews Sentiment
7.0
Number of Reviews
93
Ranking in other categories
IT Asset Management (5th), Configuration Management Databases (2nd), Container Security (12th), Risk-Based Vulnerability Management (2nd)
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
 

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.
Harold Jensen - PeerSpot reviewer
Good visibility but expensive and needs better support
Support: It's often overseas and often following a script, basically asking us to redo what we opened the case with. Multiple APIs: There seems to be a lack of easy onboarding into Qualys. We had to use manual inputs and some API calls to get items in place. Dashboard: It is very rudimentary with very little customization. The Qualys Scripting Language (QSL) works differently in different Qualys modules, so when you get it working in one area you have to modify the syntax in others. User account management: We often have to give users more rights than needed just to give them what they need. Integration with the various Qualys Modules: You can tell the UI is different based on of the different teams that created them. QSL syntax same in all modules Responsiveness of some of the components: They time out, you get a blank screen, etc. Backend updates between the various modules: You update connectors and information takes a few minutes to show in VMDR or Global Asset View Connectors: Connectors have a throttling issue with AWS which causes them to frequently fail unless you manually run them again.
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 has become an indispensable tool in our cybersecurity arsenal."
"Zafran is an excellent tool."
"It allowed us to divide tasks easily among teammates, significantly improving efficiency."
"The most valuable feature is the connection of threat intelligence information with identified vulnerabilities, which means you can prioritize vulnerabilities according to actual attacks."
"Qualys has a continuous endpoint monitoring feature for agent-based scanning. Once you deploy the solution, it monitors everything that is happening every 30 minutes. Then, if there are any vulnerabilities, they are reported."
"I like Qualys because it is a very complete product, more so than Tenable."
"Qualys VM has allowed us to know the vulnerabilities we need to prioritize based on the threat levels and the possible impact if there's an intrusion."
"The reporting is fine."
"It gives a very good overview of the inventory assessment process, and it can be accessed across our company because it's a global tool."
"They also have threat detection which maps threats. There is a feed that comes from Qualys when a new vulnerability is found. It tells us which machines are infected with that vulnerability."
"The scanning and reporting features are the most valuable aspects of Tenable Nessus."
"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."
"It gives you an unlimited IP scan."
"The automatic scanner and scheduler are pretty cool."
"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."
"Quick assessments, compliance scores, and results are provided without having to do agents."
"The features of Tenable Nessus that I have found most valuable are its reliability and its ability to collate a dependable output, where we are able to get the same vulnerability when we test manually. The output is quite reliable."
"The most valuable feature of Tenable Nessus is vulnerability detection."
 

Cons

"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 do not like that all of the data is stored on the cloud."
"They're still evolving their platform in terms of reporting capabilities."
"Could use additional security for the app."
"The reporting needs improvement. It should generate much more stuff like field reports."
"While Qualys VMDR is comprehensive, improvements in asset management functionality would be beneficial."
"They have integrated with other third parties, but it is still not viable."
"We face issues while scanning multiple assets."
"The disadvantage of working with Qualys is that the graphical interface is quite outdated."
"The features are limited when it comes to scanning network devices for vulnerabilities."
"Sometimes, the categorization for clients was tricky at first, however, they eventually got used to it."
"Vulnerability recommendations are outdated and not in line with industry standards."
"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."
"Tenable Nessus is not feasible for a large company."
"The user interface of Tenable Nessus feels outdated and could be more user-friendly."
"The price could be more reasonable. I used the free Nessus version in my lab with which you can only scan 16 IP addresses. If I wanted to put it in the lab in my network at work, and I'm doing a test project that has over 30 nodes in it, I can't use the free version of Nessus to scan it because there are only 16 IP addresses. I can't get an accurate scan. The biggest thing with all the cybersecurity tools out there nowadays, especially in 2020, is that there's a rush to get a lot of skilled cybersecurity analysts out there. Some of these companies need to realize that a lot of us are working from home and doing proof of concepts, and some of them don't even offer trials, or you get a trial and it is only 16 IP addresses. I can't really do anything with it past 16. I'm either guessing or I'm doing double work to do my scans. Let's say there was a license for 50 users or 50 IP addresses. I would spend about 200 bucks for that license to accomplish my job. This is the biggest complaint I have as of right now with all cybersecurity tools, including Rapid7, out there, especially if I'm in a company that is trying to build its cybersecurity program. How am I going to tell my boss, who has no real budget of what he needs to build his cybersecurity program, to go spend over $100,000 for a tool he has never seen, whereas, it would pack the punch if I could say, "Let me spend 200 bucks for a 50 user IP address license of this product, do a proof of concept to scan 50 nodes, and provide the reason for why we need it." I've been a director, and now I'm an ISO. When I was a director, I had a budget for an IT department, so I know how budgets work. As an ISO, the only thing that's missing from my C-level is I don't have to deal with employees and budgets, but I have everything else. It's hard for me to build the program and say, "Hey, I need these tools." If I can't get a trial, I would scratch that off the list and find something else. I'm trying to set up Tenable.io to do external PCI scans. The documentation says to put in your IP addresses or your external IP addresses. However, if the IP address is not routable, then it says that you have to use an internal agent to scan. This means that you set up a Nessus agent internally and scan, which makes sense. However, it doesn't work because when you use the plugin and tell it that it is a PCI external, it says, "You cannot use an internal agent to scan external." The documentation needs to be a little bit more clear about that. It needs to say if you're using the PCI external plugin, all IP addresses must be external and routable. It should tell the person who's setting it up, "Wait a minute. If you have an MPLS network and you're in a multi-tenant environment and the people who hold the network schema only provide you with the IP addresses just for your tenant, then you are not going to know what the actual true IP address that Tenable needs to do a PCI scan." I've been working on Tenable.io to set up PCI scans for the last ten days. I have been going back and forth to the network thinking I need this or that only to find out that I'm teaching their team, "Hey, you know what, guys? I need you to look past your MPLS network. I need you to go to the edge's edge. Here's who you need to ask to give me the whitelist to allow here." I had the blurb that says the plugin for external PCI must be reachable, and you cannot use an internal agent. I could have cut a few days because I thought I had it, but then when I ran it, it said that you can't run it this way. I wasted a few hours in a day. In terms of new features, it doesn't require new features. It is a tool that has been out there for years. It is used in the cybersecurity community. It has got the CV database in it, and there are other plugins that you could pass through. It has got APIs you can attach to it. They can just improve the database and continue adding to the database and the plugins to make sure those don't have false positives. If you're a restaurant and you focus on fried chicken, you have no business doing hamburgers."
"We use credentialed scans. They need more permissions and more changes or settings on Windows and Linux."
 

Pricing and Cost Advice

Information not available
"The pricing is very competitive."
"Qualys VM is quite expensive. It's a subscription-based license, and it's yearly. Right now, it's open for me, and I don't have any limitations or caps on the licenses. They are seeing if the product is viable for 4500 users. I can add as much as I want, and at the end of the subscription, they'll let me know how many licenses were actually used and bill me accordingly. On a scale from one to five, I would give their pricing a three. It's still expensive."
"The price is very reasonable."
"There is a license for the use of this solution. We pay annually instead of monthly to receive a better discount on the price."
"When you want to cover yourself for scalability, you will be charged for the number you place on the scan itself."
"In Nigerian Naira, we spend about roughly four to five million to use this solution and this is expensive compared to solutions like Nessus."
"The tool's pricing is expensive and I would rate the pricing a seven out of ten."
"An annual license for a single scanner costs around $3,000."
"We paid about six thousand dollars per license."
"Tenable Nessus needs to be licensed. We own a license for the security center and that license is charged by the number of IP addresses that you can scan. You're allowed to have as many scanners as you want and there's no license for the number of scanners. We have a bunch of Nessus scanners out there, and as long as we're comfortable with staying under that IP address limit, that's really all we have to be concerned about."
"This solution is affordable."
"We have a subscription, the licensing fees are paid yearly, and I am using the latest version."
"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."
"The price of the solution is reasonable."
"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 is reasonable."
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Financial Services Firm
12%
Manufacturing Company
6%
University
6%
Educational Organization
36%
Financial Services Firm
11%
Computer Software Company
10%
Manufacturing Company
6%
Educational Organization
40%
Computer Software Company
9%
Financial Services Firm
7%
Government
6%
 

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?
Pricing for Zafran Security is not expensive. We have a contract for five years, and the cost is lower than other too...
What needs improvement with Zafran Security?
I would like to see an integration with Check Point firewalls. It's essential for us and they are currently working o...
What is your primary use case for Zafran Security?
We use Zafran Security for threat prioritization. We establish priority to understand which risks should be patched o...
What do you like most about Qualys VMDR?
I like that we have many scanners and channels that don't overload. It helps us scan and track easily. Also, the tagg...
What is your experience regarding pricing and costs for Qualys VMDR?
Qualys offers better pricing and is feature-packed compared to other tools.
What needs improvement with Qualys VMDR?
They can tweak their UI since the new version seems a bit jumbled up, and the old UI was more user-friendly.
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...
 

Also Known As

No data available
Qualys VM, QualysGuard VM, Qualys Asset Inventory, Qualys Container Security
No data available
 

Overview

 

Sample Customers

Information Not Available
Agrokor Group, American Specialty Health, American State Bank, Arval, Life:), Axway, Bank of the West, Blueport Commerce, BSkyB, Brinks, CaixaBank, Cartagena, Catholic Health System, CEC Bank, Cegedim, CIGNA, Clickability, Colby-Sawyer College, Commercial Bank of Dubai, University of Utah, eBay Inc., ING Singapore, National Theatre, OTP Bank, Sodexo, WebEx
Bitbrains, Tesla, Just Eat, Crosskey Banking Solutions, Covenant Health, Youngstown State University
Find out what your peers are saying about Qualys VMDR vs. Tenable Nessus and other solutions. Updated: March 2025.
845,564 professionals have used our research since 2012.