No more typing reviews! Try our Samantha, our new voice AI agent.

Nucleus Security vs Tenable Vulnerability Management comparison

Sponsored
 

Comparison Buyer's Guide

Executive SummaryUpdated on Feb 23, 2026

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

Qualys TotalCloud
Sponsored
Ranking in Vulnerability Management
11th
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
39
Ranking in other categories
Container Security (11th), Cloud Workload Protection Platforms (CWPP) (7th), Cloud Security Posture Management (CSPM) (8th), SaaS Security Posture Management (SSPM) (1st), Cloud-Native Application Protection Platforms (CNAPP) (6th)
Nucleus Security
Ranking in Vulnerability Management
40th
Average Rating
8.0
Reviews Sentiment
7.3
Number of Reviews
2
Ranking in other categories
Application Security Tools (28th), Risk-Based Vulnerability Management (14th), Continuous Threat Exposure Management (CTEM) (13th)
Tenable Vulnerability Manag...
Ranking in Vulnerability Management
10th
Average Rating
8.2
Reviews Sentiment
6.9
Number of Reviews
46
Ranking in other categories
Patch Management (14th), Risk-Based Vulnerability Management (5th)
 

Mindshare comparison

As of July 2026, in the Vulnerability Management category, the mindshare of Qualys TotalCloud is 1.1%, up from 1.0% compared to the previous year. The mindshare of Nucleus Security is 1.0%, up from 0.8% compared to the previous year. The mindshare of Tenable Vulnerability Management is 2.8%, down from 5.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management Mindshare Distribution
ProductMindshare (%)
Tenable Vulnerability Management2.8%
Qualys TotalCloud1.1%
Nucleus Security1.0%
Other95.1%
Vulnerability Management
 

Featured Reviews

RO
IT Security Expert at Alior Bank S.A.
Unified risk scoring has improved our cloud visibility and simplifies remediation priorities
Qualys TotalCloud provides unified vulnerability and threat assessment across both IAS and SaaS. This solution provides a single prioritized view of risk, which helps reduce the work I would have to do. We are no longer based on CVSS; we are based on Qualys risk scoring, which is based on CVSS plus internal findings made by Qualys, and then assigns its own score. The TruRisk insight feature has found a small number of assets with high vulnerability scores, though I am cautious since some information is classified. Qualys TotalCloud has positively impacted our bank's performance, and we have definitely seen benefits after implementing this solution.
VK
manager at a computer software company with 201-500 employees
Unified vulnerability workflows have transformed how our teams prioritize and resolve critical risks
While the platform is incredibly powerful, the initial configuration curve of Nucleus Security can be a bit steep. When first setting up complex, multi-layered automation rules and asset groupings, the interface can feel a little overwhelming. Having more intuitive step-by-step visualized wizards or guided templates for building complex triage workflows would make the onboarding process much smoother for new team members. Dashboard customization and reporting would definitely be on my wish list. While the default dashboards are great for a general overview, it can take a bit of manual tweaking when building highly tailored workspace views for different engineering groups. Having a more flexible drag-and-drop widget system where individual teams can prioritize exactly what metrics they see first on their layout would be a huge quality of life update. On the reporting side, the data it generates is solid, but I would like to see more granular control over formatting within the platform itself. Sometimes leadership wants data tailored in very specific ways, and currently, we occasionally have to export the data and clean it up externally to meet those exact visual preferences.
Chethan Gowda - PeerSpot reviewer
Windows Security Patching Operation III (Cyber Operations) at CBTS
Have maintained accurate vulnerability scans and gained actionable remediation insights across thousands of servers
Tenable Vulnerability Management agents are very lightweight, and the results we get are very accurate. The solutions they provide to us, assuming if one vulnerability exists, there will be a solution. The resolution they give us in wording will be the best solution. The exploit rates and the reports we get provide a lot of information, making it very easy for us to verify.The main benefit of integration with Tenable Vulnerability Management is that there will be no lack of missing vulnerabilities when it comes to the patching environment. That is one of the key aspects of why we have integrated Tenable to our patching tools. It has a vast capacity of pushing the data to our tools due to its capability and compatibility. That is also one of the reasons why we are using Tenable Vulnerability Management.

Quotes from Members

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

Pros

"Qualys TotalCloud provides a single, prioritized view of risk, reducing the workload associated with consolidating multiple sources for risk prioritization."
"I highly recommend Qualys TotalCloud to other users."
"Qualys TotalCloud provides unified vulnerability and threat assessment for IaaS and SaaS and a single prioritized view of risk, which helps reduce my workload by not having to combine multiple sources."
"Qualys TotalCloud has improved our security posture."
"Generally, Qualys is very good at detections, whether on cloud or on-prem, and the agent allows deployment on both infrastructures, providing continuous monitoring of your assets, which is a key selling point for us."
"While automatic inventory detection upon connection is a helpful feature, a truly valuable capability would be assessing an environment's security posture against Azure and CIS best practices."
"The best feature would be the ability to create policies. It is easy to control and update policies as required."
"The vulnerability management feature is the one I like the most because it provides a clear picture of all vulnerabilities."
"Nucleus Security has fundamentally changed how we manage our vulnerability lifecycle and made our entire incident response process much more proactive, organized, and reliable."
"The best features that Nucleus Security offers in my experience are the unified integrations with all of the different vulnerability management platforms."
"The initial setup is very straightforward."
"You can customize each point in new scans."
"The initial setup is pretty straightforward."
"The vulnerability scanning is the most important aspect of the solution for us."
"It is easy to manage. Most of the information the tool provided helped to further investigate the vulnerability and its impact."
"The stability is excellent."
"The solution provides seamlessness, a perfect UI, and identity management for office operations. We are most vulnerable to users. Therefore, it is crucial to implement the right solution to ensure proper user access and resource management."
"Tenable.io, in particular, is quite a powerful product; it looks at your traditional environment, which is pretty much anything that is on-premises, and it also goes a step ahead and covers your modern assets, which is anything that is currently sitting in the cloud, so you get complete visibility of your entire environment and tech operation, and the ability to give you visibility across the entire tech surface is one of the biggest advantages that Tenable.io has."
 

Cons

"Qualys TotalCloud has the potential to improve by integrating a hybrid platform for comprehensive management of both on-premises and cloud infrastructures."
"There is a lack of data segregation according to criticality or inventory."
"TotalCloud could improve its scanning of niche devices like Wi-Fi dongles and USB modems because they are often untested. It covers everything else, like laptops, mobile devices, and Bluetooth IoT devices. They can improve on the small IoT devices because hackers and testers use these."
"A feature improvement could be the inclusion of Windows OS support for container security, as it is currently only supported for Linux."
"Qualys TotalCloud needs to enhance its scanning capabilities in the IP domain, as it currently lacks the functionality to resolve IPs to their corresponding domain names."
"I think Qualys TotalCloud needs to improve its handling of zero-day vulnerabilities and supply chain management because modern ransomware attacks not only target prime critical infrastructures but also the supply chain system."
"There is room for improvement in the support."
"The onboarding process is a bit difficult. In the initial phase, it is very difficult to understand the features, what the dashboard contains, and what criteria they are using."
"Nucleus Security needs a better view into exposure management, as exposure management and attack path management are missing."
"While the platform is incredibly powerful, the initial configuration curve of Nucleus Security can be a bit steep."
"I would rate it four out of ten. For startups, freelancers, or companies between startup and midsize, Tenable is recommended. However, for midsize or enterprise-level companies, I would not prefer it."
"My rating for customer service is three."
"The user interface could be improved by being able to change the user interface to fit your position or your job. The graphs are set in stone and you can only print reports."
"The solution must provide penetration testing."
"The solution seems to focus too much on enterprises, and they really need a product that works for SMBs."
"I would evaluate Tenable Vulnerability Management's customer service and technical support as average."
"The UI has room for improvement."
"The dashboard and the main panel could be better. It's lacking right now."
 

Pricing and Cost Advice

"It isn't cheap, but it's reasonable. It helps us to manage things with very few resources."
"Although Qualys TotalCloud is relatively expensive due to its unique automation features, its cost-effectiveness is rated an eight out of ten, with ten being the most costly."
"Qualys TotalCloud is expensive, but it offers a premier solution with no headaches."
"Qualys TotalCloud offers competitive pricing given its comprehensive suite of features, including integration, assessment, remediation, and detection capabilities, all within a single platform."
"The pricing is comparable. It is built into our other product, so I cannot piecemeal it. It is a part of our subscription."
"I am not sure about the pricing. From what I understand, it is a bit on the higher side, but I do not have the exact numbers."
"Qualys TotalCloud is expensive."
"Qualys TotalCloud is cost-efficient and was selected for its value compared to other products."
Information not available
"The solution is not too expensive."
"The product costs us around $137,000 annually for 4000 to 5000 assets."
"I would rate the pricing a five out of ten. It is in the middle."
"Compared to other VM solutions, Tenable.io Vulnerability Management is expensive."
"Tenable.io Vulnerability Management's pricing solution model isn't great."
"The cost is determined by the number of endpoints, which is approximately one dollar per endpoint."
"Tenable charges around $40 per device."
"A yearly payment has to be made toward the solution's licensing costs."
report
Use our free recommendation engine to learn which Vulnerability Management solutions are best for your needs.
903,933 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Manufacturing Company
16%
Financial Services Firm
13%
Construction Company
8%
Comms Service Provider
7%
Computer Software Company
13%
Financial Services Firm
13%
Construction Company
8%
Manufacturing Company
7%
Financial Services Firm
14%
Manufacturing Company
10%
Computer Software Company
8%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise5
Large Enterprise29
No data available
By reviewers
Company SizeCount
Small Business20
Midsize Enterprise3
Large Enterprise22
 

Questions from the Community

What needs improvement with Qualys TotalCloud?
Areas that need improvement in every solution include the remediation part. The remediation steps should be simple en...
What is your primary use case for Qualys TotalCloud?
Our use case involves the assets that we have under cloud, the assets exposed to the internet, and the internal appli...
What is your experience regarding pricing and costs for Nucleus Security?
I have a good experience with that, so we don't have much problem dealing with pricing, setup, and licensing.
What needs improvement with Nucleus Security?
Nucleus Security needs a better view into exposure management, as exposure management and attack path management are ...
What is your primary use case for Nucleus Security?
My main use case for Nucleus Security is unifying the vulnerability management landscape, providing a single source o...
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 needs improvement with Tenable.io Vulnerability Management?
In my opinion, I would like to see additional functions and improvements. Something related to AI would be a good add...
What advice do you have for others considering Tenable.io Vulnerability Management?
I have purchased a license directly from Tenable, so I am working directly with Tenable and not through partners. My ...
 

Also Known As

Qualys TotalCloud with FlexScan
No data available
Tenable.io
 

Overview

 

Sample Customers

Information Not Available
Information Not Available
Global Payments AU/NZ
Find out what your peers are saying about Wiz, Qualys, Tenable and others in Vulnerability Management. Updated: June 2026.
903,933 professionals have used our research since 2012.