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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
18th
Average Rating
9.6
Reviews Sentiment
7.8
Number of Reviews
6
Ranking in other categories
Continuous Threat Exposure Management (CTEM) (3rd)
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 (3rd), Configuration Management Databases (2nd), Container Security (9th), Risk-Based Vulnerability Management (1st)
Tenable Nessus
Ranking in Vulnerability Management
2nd
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 January 2026, in the Vulnerability Management category, the mindshare of Zafran Security is 1.1%, up from 0.2% compared to the previous year. The mindshare of Qualys VMDR is 5.0%, down from 9.3% compared to the previous year. The mindshare of Tenable Nessus is 5.2%, down from 10.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management Market Share Distribution
ProductMarket Share (%)
Tenable Nessus5.2%
Qualys VMDR5.0%
Zafran Security1.1%
Other88.7%
Vulnerability Management
 

Featured Reviews

Reviewer6233 - PeerSpot reviewer
Works at a healthcare company with 10,001+ employees
Has become an indispensable tool in our cybersecurity arsenal
While Zafran Security is already a powerful tool, there are areas where it could be further improved to provide even greater value. One key area for enhancement is the searching capabilities within its vulnerabilities module. By incorporating the ability to create Boolean searches, users would gain the ability to apply more complex filters and customize their search criteria. This would greatly enhance the precision and efficiency with which security teams can identify and prioritize vulnerabilities. Having such tailored search capabilities would save time and resources by narrowing down vast lists of vulnerabilities to those that meet specific parameters relevant to our unique risk environment. Additionally, integrating more robust reporting and visualization tools would be advantageous. Enhanced dashboards that offer customizable visual representations of risk configurations and threat landscapes would facilitate better communication with stakeholders, making it easier to explain vulnerabilities and the rationale behind certain security measures. This would also aid in demonstrating the improvements and value derived from existing security investments to leadership and non-technical team members.
reviewer2753559 - PeerSpot reviewer
Cyber Security Solution Engineer at a computer software company with 201-500 employees
Reduces vulnerability exposure time and automates workflow for efficient security management
One area where Qualys VMDR can be improved is the missing feature for deploying agents for over 1,000 assets, as we need to do it manually. Qualys doesn't have its own tool to deploy the agents all at once, so we need to use third-party tools such as BigFix or something else to deploy the agents, which is my main concern and should be fixed by the Qualys team. That is the main thing I would like to see changed, and apart from that, everything is good.
MohammedJaffir - PeerSpot reviewer
Founder at Cipheroot
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

"Zafran has become an indispensable tool in our cybersecurity arsenal."
"With Zafran Security, it integrates with your security controls, allowing you to take that risk score and reduce it based on the controls in place or increase the risk based on different factors, such as if the issue is internet reachable or if there's an exploit in the wild."
"Zafran is an excellent tool."
"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."
"Overall, we have seen about eighty-seven percent reduction of the number of vulnerabilities that require urgency to remediate, specifically the number of criticals."
"Technical support is great and we've never really had a problem."
"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 is very easy to use and there are lots of options. We can usually easily go through it and all of the things we want to configure, and we can configure everything to our specifications very easily."
"Using this product, we now have a vulnerability management cycle wherein VMDR plays a major role."
"It gives you a lot of options, and it integrates with our ServiceNow for ticketing and all."
"We also like the flexibility in their licensing."
"The reporting is fine."
"I like that we have many scanners and channels that don't overload. It helps us scan and track easily. Also, the tagging system is good for tagging. We can still use QualysAgent task ID tools even if tags aren't made."
"The solution is very stable."
"The most valuable features are that it's fast, it's easy to use and it provides good reports."
"The results are not that bad, but the key selling point is that it is an affordable tool set."
"Tenable Nessus is cheap and flexible."
"The scanning and reporting features are the most valuable aspects of Tenable Nessus."
"The most valuable feature of Tenable Nessus is the GUI and user-friendliness. Additionally, the environment is easy to work with."
"It notifies us of vulnerabilities as they arise, allowing us to respond quickly without manual intervention."
"The initial setup of Tenable Nessus is very easy."
 

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 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."
"The dashboarding and reporting functionality of Zafran Security is an area that definitely could use some improvements."
"While Qualys VMDR is comprehensive, improvements in asset management functionality would be beneficial."
"There were some issues later with Qualys VMDR regarding security, specifically with numerous false positive reports."
"The only improvement I can think of is on the implementation side. At times it is a bit slow."
"The reporting section needs improvement as running reports can take several hours."
"The response time of technical support takes a while."
"Qualys currently does not have any features for scanning SCADA, IoT, and Industrial Control Systems."
"Make some minimal dashboard improvements."
"What we have found is that the solution is not closely tied with the patch management. It is okay with newer ones, like Windows 10 machines; it gives the correct patch. But for Windows 7 or Windows Server 2008, it does not give us the correct patch so we have to manually identify the patches. This is a major problem."
"The product could have unique features similar to one of its competitors."
"I would like to see an improvement in the ranking of high, medium and low vulnerability."
"Tenable Nessus could improve reporting and information sharing. It would be helpful if we could share the reports and have a little bit better flexibility in the reporting of the data."
"Lacks some penetration testing-related services."
"The solution could improve by having better integration with different vendors' IPS solutions. The ACLs and IPS policies signatures should be enabled based on the results of Tenable Nessus automatically, we currently have to do it manually which is very time-consuming. It has done a good job integrating with Fortinet but we would like it to be better integrated with other solutions that we have."
"To be honest, I haven't used it much to tell you that these are the things that should be improved. But I believe the UI should be enhanced somewhat. For example, there are two ways to find a report, and people are frequently confused as to which is the correct method for locating a full report. Sometimes they go in the opposite direction, so this is an area that may be improved."
"From my point of view the solution basically is not for the big enterprise."
"Tenable Nessus is not feasible for a large company."
 

Pricing and Cost Advice

Information not available
"Qualys is cheaper and more affordable than other solutions."
"The solution is reasonably priced for the value it provides."
"It's very expensive, especially if you want to use multiple modules of Qualys."
"The solution is expensive."
"The solution is costly."
"The price is very reasonable."
"Qualys is a pay-as-you-go model, so there's flexibility to the pricing."
"An annual license for a single scanner costs around $3,000."
"The is a free version of Tenable Nessus available."
"The price of Tenable Nessus is too expensive for each service center."
"There is an annual license required to use this solution."
"We have a subscription, the licensing fees are paid yearly, and I am using the latest version."
"Nessus is affordable, but its licensing model could be improved with more flexibility for adding assets."
"While Tenable Nessus is a good enterprise solution, the high price would likely make it prohibitive to smaller organizations."
"The price is okay. I would give it a seven out of ten, where one is cheap and ten is expensive."
"The price is high for the solution. There are free tools with similar functionality available. The solution cost approximately $3,500."
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Top Industries

By visitors reading reviews
Financial Services Firm
11%
Computer Software Company
8%
Manufacturing Company
8%
Outsourcing Company
5%
Financial Services Firm
16%
Computer Software Company
10%
Manufacturing Company
8%
Government
7%
Computer Software Company
11%
Financial Services Firm
10%
Manufacturing Company
10%
Government
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: December 2025.
879,422 professionals have used our research since 2012.