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Qualys VMDR vs Tenable Nessus comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Oct 19, 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
17th
Average Rating
9.6
Reviews Sentiment
7.8
Number of Reviews
6
Ranking in other categories
Continuous Threat Exposure Management (CTEM) (1st)
Qualys VMDR
Ranking in Vulnerability Management
3rd
Average Rating
8.4
Reviews Sentiment
7.0
Number of Reviews
95
Ranking in other categories
IT Asset Management (4th), Configuration Management Databases (2nd), Container Security (9th), Risk-Based Vulnerability Management (1st)
Tenable Nessus
Ranking in Vulnerability Management
1st
Average Rating
8.4
Reviews Sentiment
6.0
Number of Reviews
87
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of October 2025, in the Vulnerability Management category, the mindshare of Zafran Security is 1.0%, up from 0.1% compared to the previous year. The mindshare of Qualys VMDR is 6.4%, down from 10.8% compared to the previous year. The mindshare of Tenable Nessus is 7.3%, down from 11.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management Market Share Distribution
ProductMarket Share (%)
Tenable Nessus7.3%
Qualys VMDR6.4%
Zafran Security1.0%
Other85.3%
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.
Ankesh Raj - PeerSpot reviewer
Real-time responses and reporting streamline vulnerability management
Qualys VMDR provides a real-time response and reporting feature, which is excellent. It allows us to see real-time graphs and reports for every asset, server, and more, which is very user-friendly. Our clients have given good feedback, and they are satisfied with the tool. We use it daily to fix vulnerabilities by connecting with infrastructure to remediate. The feedback from the client side is very good.
MohammedJaffir - PeerSpot reviewer
Has enabled me to reduce false positives and perform deep credential auditing with seamless integrations
I mostly use the configuration audit feature for the audit configuration as a scan policy, and I will use it for credential audit, which helps me scan credentials access such as local administrator or root access, performing a deeper and more accurate check of local configuration settings and file systems, making it a highly recommended feature. Regarding integration capabilities, we can integrate Tenable Nessus with SIM tools such as Splunk, IBM QRadar, and Azure Sentinel, as well as with ticketing systems such as ServiceNow, Jira, and Slack. There is no complexity as it is very easy to integrate everything. In terms of the reporting feature, while vulnerability scanning can throw some false positives, Tenable Nessus has very few, achieving a reduction of 75% to 80% false positives with manual analysis needed. We can generate standard Nessus reports that typically include host summaries and vulnerabilities by host and plugin, alongside solutions and remediation recommendations. The main benefits I get from Tenable Nessus are complete asset inventory and comprehensive attack surface management, allowing us to prioritize vulnerabilities based on risk, focusing on true risk and threat path analysis.

Quotes from Members

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

Pros

"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."
"Zafran has become an indispensable tool in our cybersecurity arsenal."
"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 is an excellent tool."
"I like Qualys because it is a very complete product, more so than Tenable."
"The most recent is VMDR, which provides a comprehensive overview of how to detect, patch, and remediate specific vulnerabilities."
"This is one of the best products I have worked with so far. I like the power of Qualys, and it's a better solution because you can scan a compact file, a BIT file, or batch files. The product already knows what's happening inside, and you don't need to expand the package. Tenable will do the same thing, but you need to have a package issuance claim. With Qualys, we can immediately understand the file, even a compact file. If there's some kind of discovery or incident, you will know what happened in the environment."
"It's a good product. After the scan our internet works well. It scans our security posture."
"There are fewer false positives when using this solution."
"The initial setup was good. We didn't have any problems with it."
"The platform's most valuable features include its robust vulnerability detection capabilities and automated remediation workflows."
"It's very configurable to adjust impact to systems."
"Overall Zoom is a good solution."
"Quick assessments, compliance scores, and results are provided without having to do agents."
"Tenable integrates well with other solutions such as SIEM and batch management."
"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."
"The most valuable feature of Tenable Nessus is the dashboard. They are convenient to use."
"Once you get past the initial implementation, the solution is very stable."
"You can then direct your team to create a report on the discovered vulnerabilities."
"My favorite part about Nessus is that you can customize the tool to scan exactly what you want. Microsoft releases new patches monthly on Patch Tuesday, and a lot of companies track that date. I set up Nessus for the day after Patch Tuesday to see which devices have already pushed those updates from Microsoft, so we can stay updated."
 

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."
"Certain integration factors between different options could be improved."
"I do not like that all of the data is stored on the cloud."
"Make some minimal dashboard improvements."
"Qualys should improve their customer experience. They need to improve the tech support experience and the turnaround time."
"I would like to see this solution more developed and competitive in the Cloud space."
"One area for improvement is the simplification of the process to ignore certain vulnerabilities on specific devices."
"There are scenarios where a vulnerability is reported once yet not in subsequent scans, even if we have not fixed it."
"It would be helpful to have features for better tracking, including options for adding relevant owners or supporting groups for each asset."
"EQA's and dashboards should be addressed in the next release."
"We'd like to see the solution embrace more user-friendliness."
"They have added a new Tenable Nessus Expert. That is their new product, which caters to the cloud and everything else. I am assuming that the new features and product enhancements are based on that tool set, but we haven't reviewed it yet."
"The product must be more comprehensive."
"Scans aren't done properly and some devices aren't pinged."
"One significant drawback we encounter is the tool's tendency to flag patched packages incorrectly. For instance, if a package is patched by Debian maintainers but not updated to a major or minor version, Nessus may still flag it as vulnerable based on its database. This discrepancy leads to false alarms and requires our developers, system admins, and DevOps teams to address them."
"The report for counters is too simple and would be improved by a dashboard."
"We have had some false positives in the past, which we hope can improve in the future."
 

Pricing and Cost Advice

Information not available
"The pricing and licensing for Qualys could be improved."
"They have recently changed the pricing model, which is now better than it was before."
"We have an annual contract for Qualys VMDR. I believe it's for either two years or five years."
"The solution is expensive."
"The solution is reasonably priced for the value it provides."
"Qualys Virtual Scanner Appliance isn't expensive right now. But the price for their product bundles could be better."
"There is a license for the use of this solution. We pay annually instead of monthly to receive a better discount on the price."
"It is different for every company, but for us, it's every three years."
"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."
"It has a fair cost and very good cost-benefit ratio."
"The product pricing is dynamic and varies based on the specific needs of each project and customer."
"The product is free."
"There is an annual license required to use this solution."
"Nessus is affordable, but its licensing model could be improved with more flexibility for adding assets."
"I would like to see better discounts."
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Top Industries

By visitors reading reviews
Financial Services Firm
11%
Computer Software Company
9%
Manufacturing Company
8%
Government
5%
Financial Services Firm
17%
Computer Software Company
11%
Manufacturing Company
8%
Government
7%
Computer Software Company
12%
Financial Services Firm
11%
Government
10%
Manufacturing Company
10%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business20
Midsize Enterprise12
Large Enterprise69
By reviewers
Company SizeCount
Small Business39
Midsize Enterprise19
Large Enterprise35
 

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 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?
My experience with pricing, setup cost, and licensing shows that we can consider both time and money saved.
What needs improvement with Qualys VMDR?
One area where Qualys VMDR can be improved is the missing feature for deploying agents for over 1,000 assets, as we n...
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: September 2025.
872,098 professionals have used our research since 2012.