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Tenable Nessus vs VulScan comparison

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Comparison Buyer's Guide

Executive Summary

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
7.1
Number of Reviews
44
Ranking in other categories
Container Security (12th), Cloud Workload Protection Platforms (CWPP) (8th), Cloud Security Posture Management (CSPM) (8th), SaaS Security Posture Management (SSPM) (2nd), Cloud-Native Application Protection Platforms (CNAPP) (7th)
Tenable Nessus
Ranking in Vulnerability Management
3rd
Average Rating
8.4
Reviews Sentiment
6.0
Number of Reviews
89
Ranking in other categories
No ranking in other categories
VulScan
Ranking in Vulnerability Management
74th
Average Rating
0.0
Number of Reviews
0
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Vulnerability Management category, the mindshare of Qualys TotalCloud is 1.2%, up from 1.0% compared to the previous year. The mindshare of Tenable Nessus is 3.7%, down from 8.2% compared to the previous year. The mindshare of VulScan is 0.4%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management Mindshare Distribution
ProductMindshare (%)
Tenable Nessus3.7%
Qualys TotalCloud1.2%
VulScan0.4%
Other94.7%
Vulnerability Management
 

Featured Reviews

YashwantShinde - PeerSpot reviewer
Soc Analyst at a manufacturing company with 10,001+ employees
Risk-based visibility has transformed how I prioritize cloud vulnerabilities and protect key assets
The best features Qualys TotalCloud offers are cloud asset visibility, vulnerability assessment, and risk prioritization. This risk-based prioritization helped me quickly identify high-risk vulnerabilities and focus on remediation instead of going through every finding. TrueRisk-based prioritization is useful for understanding which vulnerabilities need attention first. It improved our workflow mainly by giving us a single view of cloud assets and their risk, so we could focus on the higher priority vulnerabilities instead of reviewing every finding manually. This helped us prioritize remediations more efficiently and reduce the time spent on vulnerability assessment and follow-up. Qualys TotalCloud helped us identify exposures that might otherwise have been missed, especially across cloud assets, vulnerabilities, and identities. With the SaaS configuration, the unified inventory and risk view made it easier to connect vulnerabilities with asset criticality, exposure, and access permissions, allowing us to investigate high-risk exposures first and address them before they could become bigger security issues.
Noor Mustafa Awan - PeerSpot reviewer
Senior Cyber Security Professional at Cyber Career Academy and Solutions, Calgary, Alberta, Canada
Comprehensive vulnerability insights have strengthened our risk-based security decisions
Tenable Nessus is excellent. While Tenable Nessus needs no improvement, if you ask me this question, let me give you some suggestions on how it can be improved. Tenable Nessus provides vulnerability information and prioritization capabilities, but a more intelligent risk-based recommendation system could help organizations determine exactly which vulnerability should be fixed first. It could automatically consider asset criticality, exploitability, exposure, business impact, and compensating controls. Furthermore, reducing false positives and duplicate findings would make results easier to act on. While Tenable Nessus provides plugin rules to hide or modify the presentation of selective findings, these are post-scan reporting controls rather than changes to how the scan runs. Large environments can require substantial scanning time. More intelligent adaptive scanning could automatically adjust concurrency, plugin selections, and scan intensity based on the target environment. Although Tenable Nessus provides extensive performance tuning controls, there is room for improvement in advanced reporting. A more executive-friendly dashboard could show risk trends over time, top business-critical vulnerabilities, remediation progress, vulnerabilities exposed to the internet, and SLA breaches. Such a dashboard would simplify communicating vulnerability risk to senior management. Additionally, out-of-the-box integrations with CM, SIEM, SOAR, ITSM, and ticketing platforms could help automatically create, assign prioritization, and close remediation tickets. Regarding simpler plugin management, Tenable Nessus allows users to select plugin families or individual plugins, and new plugins can automatically become enabled when their associated family is enabled. A more intelligent recommendation system could automatically suggest the appropriate plugin based on discovered technologies and the organization's scanning objectives. Lastly, in terms of better remediation guidance, instead of simply identifying a vulnerability, Tenable Nessus could provide more environment-specific remediation instructions, including recommended patches, configuration changes, verification steps, and rollback considerations. Overall, I think Tenable Nessus is a strong and mature vulnerability assessment solution, and I highly recommend this product to organizations. I really love this product.
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Top Industries

By visitors reading reviews
Manufacturing Company
12%
Comms Service Provider
12%
Outsourcing Company
12%
Financial Services Firm
10%
Financial Services Firm
10%
Manufacturing Company
10%
Government
9%
Comms Service Provider
6%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business12
Midsize Enterprise5
Large Enterprise32
By reviewers
Company SizeCount
Small Business41
Midsize Enterprise19
Large Enterprise35
No data available
 

Questions from the Community

What needs improvement with Qualys TotalCloud?
To be totally honest, I do not have any best features because I have had a bad experience using this tool, especially...
What is your primary use case for Qualys TotalCloud?
My main use case for Qualys TotalCloud is vulnerability management and exposure management. I use this tool to evalua...
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 is your experience regarding pricing and costs for Tenable Nessus?
Based on my experience, the pricing for Tenable Nessus is somewhat higher, but customers still want to pay for it, so...
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Also Known As

Qualys TotalCloud with FlexScan
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No data available
 

Overview

 

Sample Customers

Information Not Available
Bitbrains, Tesla, Just Eat, Crosskey Banking Solutions, Covenant Health, Youngstown State University
Information Not Available
Find out what your peers are saying about Wiz, Qualys, Tenable and others in Vulnerability Management. Updated: August 2026.
910,564 professionals have used our research since 2012.