Nucleus Security vs Tenable Vulnerability Management comparison

Nucleus Security and Tenable are both solutions in the Vulnerability Management category. Nucleus Security is ranked #53, while Tenable is ranked #5 with an average rating of 7.8. Nucleus Security holds a 0.9% mindshare in VM, compared to Tenable’s 3.1% mindshare. Additionally, 100% of Nucleus Security users are willing to recommend the solution, compared to 92% of Tenable users who would recommend it.

Nucleus Security

Read 2 Nucleus Security reviews

1,742 Views
1,028 Comparison Views

100% willing to recommend

Tenable Vulnerability Manag...

Read 45 Tenable Vulnerability Management reviews

7,009 Views
6,028 Comparison Views

92% willing to recommend

Nucleus Security

Tenable Vulnerability Manag...

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Executive SummaryUpdated on Feb 23, 2026

Tenable Vulnerability Management and Nucleus Security are both in the vulnerability management and security category. Tenable appears to have a slight advantage due to its feature set although Nucleus offers significant advantages in flexibility and centralized management.

Features: Tenable Vulnerability Management offers advanced threat detection, broad asset coverage, and adaptive user support. It is notable for its continuous network scanning and automated risk assessment. Nucleus Security is focused on flexible integrations, providing compatibility with many security tools and a centralized platform that enhances vulnerability insights. While both products add value, Tenable’s tools address more diverse needs.

Ease of Deployment and Customer Service: Nucleus Security offers a straightforward deployment model with strong customer service and agile integration options that streamline onboarding. Tenable Vulnerability Management, though a bit more complex in deployment, provides comprehensive customer support that handles its broader toolset.

Pricing and ROI: Tenable Vulnerability Management has a competitive pricing structure supporting its capabilities and offers good ROI for complex IT environments. Nucleus Security, while more affordable, provides value with its integration options and high ROI for organizations focusing on centralized management. Both have compelling setups, though Tenable's pricing is tightly aligned with its features.

To learn more, read our detailed Vulnerability Management Report (Updated: February 2026).

Buyer's Guide

Vulnerability Management

February 2026

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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

Nucleus Security

Ranking in Vulnerability Management

53rd

Ranking in Risk-Based Vulnerability Management

22nd

Average Rating

7.6

Reviews Sentiment

6.9

Number of Reviews

Ranking in other categories

Application Security Tools (36th), Continuous Threat Exposure Management (CTEM) (15th)

Tenable Vulnerability Manag...

Ranking in Vulnerability Management

5th

Ranking in Risk-Based Vulnerability Management

2nd

Average Rating

8.2

Reviews Sentiment

6.9

Number of Reviews

Ranking in other categories

Patch Management (11th)

Mindshare comparison

As of April 2026, in the Vulnerability Management category, the mindshare of Nucleus Security is 0.9%, up from 0.8% compared to the previous year. The mindshare of Tenable Vulnerability Management is 3.1%, down from 6.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Vulnerability Management Mindshare Distribution
Product	Mindshare (%)
Tenable Vulnerability Management	3.1%
Nucleus Security	0.9%
Other	96.0%

Vulnerability Management

Featured Reviews

Biswajit Jena

Technical Director at Entrust Software Development India

Centralized security testing has improved vulnerability remediation and compliance reporting

I recommend more enhancements focusing on penetration testing for both SSL over HTTP and non-SSL over HTTP, specifically targeting the RCP Rich Client Platform and Equinox frameworks that allow on-premises desktop applications to be tested simultaneously. I believe those would significantly improve the tool in the future. I choose eight as my rating primarily because of the installer app; it becomes challenging to identify the actual vulnerabilities. Once we build this installer—rather than just working on the codebase—sometimes, we face gaps considering the build parameters and conversions to the installer. Identifying those gaps is an area that could use improvement after the installer or desktop application testing, which would be beneficial. That is the only reason; otherwise, I could easily rate it a ten out of ten given its smooth operational process.

Read full review

Chethan Gowda

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.

Read full review

Quotes from Members

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

Pros

"I think the best features that Nucleus Security offers are purely the faster remediation to dev tools, which is crucial for managing, prioritizing, and fixing vulnerabilities while helping operational pipelines run these vulnerability management tools."

"We have seen clear compliance and risk control outcomes more than other operational metrics, including fewer process gaps during documentation and safety checks, strong consistency in following protocols for handling, traceability, and staff awareness, better audit readiness, a lower chance of procedure errors, and faster escalation when something appears out of standard, which is very important for us in the healthcare sector."

"The vulnerability scanning is the most important aspect of the solution for us."

"A new user can easily understand the workflow, even if they are creating users for other divisions and the user is a beginner."

"The solution creates vulnerability tickets within the VM profile but should also include them under the Remediation tab so the fixes can be viewed in the ticketing queue."

"The interface is fine."

"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."

"One of the most valuable features of Tenable.io Vulnerability Management is its exportability, which allows us to conduct risk assessments efficiently."

"Tenable is user-friendly and excels in reporting."

"The product has many features and continues to develop its capabilities at a rapid pace."

More Tenable Vulnerability Management pros

Cons

"I choose eight as my rating primarily because of the installer app; it becomes challenging to identify the actual vulnerabilities."

"Protocols can be too complex in practice sometimes, and some processes can feel heavy and disconnected from our daily workflow."

"I would not say very expensive for Tenable Vulnerability Management; it is not prohibitive, but at the same time, there are some other tools in the marketplace which are offering the same kind of services that Tenable offers, the same kind of features that Tenable has offered at a lesser cost."

"More flexibility is required compared to other solutions."

"The price could be lower, and the grouping of platforms on the dashboard can be included in the next release of the product."

"We'd like to see a bit more user-friendliness. They need to work on that aspect of the solution."

"They need to have more dependable and faster support."

"It can have more integration."

"An area of improvement for this solution is being able to customize the dashboard. For example, the dashboard does not allow us to view a previous months vulnerability results alongside current results to make comparisons."

"It would be helpful if Tenable could be more clear with regard to everything the solution can and cannot do with the particular license that you have."

More Tenable Vulnerability Management cons

Pricing and Cost Advice

Information not available

"The total cost we pay for this solution is over 45K. This is for a large education organization."

"The solution is not too expensive."

"The tool is reasonably priced."

"Yearly payments are to be made toward the licensing cost of the product. It is neither a cheap nor an expensive product."

"I would rate the pricing a five out of ten. It is in the middle."

"Tenable charges around $40 per device."

"Tenable.io Vulnerability Management's pricing solution model isn't great."

"Compared to other VM solutions, Tenable.io Vulnerability Management is expensive."

More Tenable Vulnerability Management pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

17%

Financial Services Firm

Comms Service Provider

Insurance Company

Financial Services Firm

12%

Computer Software Company

10%

Manufacturing Company

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

By reviewers
Company Size	Count
Small Business	20
Midsize Enterprise	3
Large Enterprise	21

Questions from the Community

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.

See all answers

What needs improvement with Nucleus Security?

I think it can be improved by making it more practical, integrated, and easier for teams to apply in real-world workflow from a healthcare perspective. The main improvements I can see right now are...

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What is your primary use case for Nucleus Security?

I have been using Nucleus Security for the past few years in my company, particularly in the healthcare field.I use Nucleus Security especially for understanding radiation safety, nuclear medicine,...

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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 the program is such that if a company should desire to handle the installation t...

See all answers

What do you like most about Tenable.io Vulnerability Management?

The tool has an easy-to-use interface.

See all answers

What needs improvement with Tenable.io Vulnerability Management?

I don't think that there is any very specific area where enhancements need to happen in Tenable Vulnerability Management's feature sets. The only area which possibly is not a part of the feature, b...

See all answers

Comparisons

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Compared 6% of the time

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Compared 4% of the time

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Compared 7% of the time

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Compared 6% of the time

Qualys VMDR vs Tenable Vulnerability Management

Compared 4% of the time

Amazon Inspector vs Tenable Vulnerability Management

Compared 4% of the time

SentinelOne Singularity Identity vs Tenable Vulnerability Management

Compared 3% of the time

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Product Reports

Buyer's Guide

Risk-Based Vulnerability Management

March 2026

Download Nucleus Security product report

Buyer's Guide

Tenable Vulnerability Management

March 2026

Download Tenable Vulnerability Management product report

Also Known As

No data available

Tenable.io

Overview

Nucleus Security offers a scalable vulnerability management platform designed for effective risk reduction. By integrating with existing IT infrastructure, it enhances security measures and improves agility.

As a comprehensive security tool, Nucleus Security provides customizable vulnerability assessment, streamlined workflows, and integration capabilities with security tools to enhance threat detection and response. It's tailored for enterprises seeking an intuitive management platform that delivers actionable insights and increases efficiency. By leveraging robust automation and advanced analytics, the platform aids organizations in optimizing their cybersecurity posture.

What are the key features of Nucleus Security?

Customizable Dashboards: Offers personalized views for better visibility and control.
Automated Workflows: Reduces manual tasks, allowing for quicker incident response.
Extensive Integrations: Connects with major security tools to unify threat data.
Risk Prioritization: Analyzes threats to focus on the most critical vulnerabilities.

What benefits can users expect from Nucleus Security?

Increased Efficiency: Streamlined processes lead to faster threat resolution.
Enhanced Data Visibility: Comprehensive data access improves decision-making capabilities.
Cost Reduction: Automation reduces labor costs and minimizes resource expenditure.
Improved Compliance: Facilitates adherence to regulatory standards and policies.

In industries like healthcare, finance, and technology, Nucleus Security is implemented to address specific risks and compliance needs. It provides tailored solutions to safeguard sensitive data, manage regulatory pressures, and ensure robust threat detection. Industries benefit from its ability to adapt to sector-specific challenges while maintaining high security standards.

Nucleus Security

Managed in the cloud and powered by Tenable Nessus, Tenable Vulnerability Management (formerly Tenable.io) provides the industry's most comprehensive vulnerability coverage with real-time continuous assessment of your organization. Built-in prioritization, threat intelligence and real-time insight help you understand your exposures and proactively prioritize remediations.

Tenable

Sample Customers

Information Not Available

Global Payments AU/NZ

Buyer's Guide

Vulnerability Management

February 2026

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