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Tenable Nessus vs Vicarius vRx comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Oct 9, 2024

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
16th
Average Rating
9.6
Reviews Sentiment
7.8
Number of Reviews
6
Ranking in other categories
Continuous Threat Exposure Management (CTEM) (1st)
Tenable Nessus
Ranking in Vulnerability Management
1st
Average Rating
8.4
Reviews Sentiment
6.0
Number of Reviews
86
Ranking in other categories
No ranking in other categories
Vicarius vRx
Ranking in Vulnerability Management
15th
Average Rating
8.0
Reviews Sentiment
7.6
Number of Reviews
21
Ranking in other categories
Patch Management (6th), Risk-Based Vulnerability Management (6th)
 

Mindshare comparison

As of October 2025, in the Vulnerability Management category, the mindshare of Zafran Security is 1.1%, up from 0.1% compared to the previous year. The mindshare of Tenable Nessus is 7.7%, down from 11.9% compared to the previous year. The mindshare of Vicarius vRx is 1.0%, up from 0.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management Market Share Distribution
ProductMarket Share (%)
Tenable Nessus7.7%
Vicarius vRx1.0%
Zafran Security1.1%
Other90.2%
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.
HarshBhardiya - PeerSpot reviewer
Provided increased visibility across the organization's servers
The user interface of Tenable Nessus feels outdated and could be more user-friendly. Additionally, the documentation is not well-organized, which can be confusing when searching for solutions or specific information related to Tenable Nessus Professional. The reporting feature could be improved by allowing users to create their own templates instead of relying on predefined ones.
OrenBen Shalom - PeerSpot reviewer
Consolidates vulnerability discovery, prioritization, and remediation in a single platform
Vicarius vRx offers several advantages, especially for organizations with diverse operating systems and applications requiring frequent patching. The platform helps prioritize patch installation by identifying high-risk vulnerabilities, allowing IT teams to focus on critical threats first. This prioritization is crucial because it prevents IT teams from being overwhelmed by the constant influx of patches, enabling them to create a manageable plan and allocate resources effectively. By distinguishing between critical, high-risk, and medium-risk vulnerabilities, Vicarius vRx empowers IT teams to address the most urgent threats promptly and schedule less critical patches for later. Both native operating system updates and Vicarius vRx offer vulnerability remediation. Native OS updates allow for the patching of system vulnerabilities on Windows, macOS, and Linux. However, Vicarius vRx provides a single solution for installing both operating system and application updates by also discovering application vulnerabilities. Another valuable feature is virtual patching, which allows us to protect an asset from a specific vulnerability without installing a patch. Sometimes, installing a patch alone is insufficient and requires restarting the asset. However, production servers often cannot be restarted during the day, restricting restarts to specific timeslots. Virtual patching creates a network-based protection layer that prevents exploitation of a vulnerability, offering a temporary safeguard. While not a foolproof solution for long-term use, it's a valuable tool that reduces tension between IT and security teams by providing time to properly install patches.

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."
"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."
"We saw benefits from Zafran Security almost immediately after deploying it."
"Zafran is an excellent tool."
"We have around 500 virtual machines. Therefore, we conduct monthly scans and open tickets for our developers to address identified vulnerabilities. These scans cover the servers, other network equipment, and appliances in our infrastructure."
"Nessus is good at finding out what nodes you have in place. It will then provide you a report, by node, of what the vulnerabilities are. It does it quickly and stealthfully."
"Nessus' most valuable feature is vulnerability management because it helps to discover vulnerabilities proactively and integrates with patch management solutions so you can push patches."
"The reports are pretty nice and easy to understand."
"The most valuable feature of Tenable Nessus is vulnerability detection."
"Ease of reviewing scores, identifying vulnerabilities, and getting information on them."
"The most valuable feature of Tenable Nessus is website scanning."
"I like the fact that it was not expensive. I like that it's user-friendly."
"I also like how easy it is to use. We instructed some companies on how to use it, provided them with an account, and gave them the ability to deploy and patch. They could quickly figure it out. We can spend an hour in the office showing someone how everything works, and they're good to go. It's the same with our customers."
"The prioritization of the vulnerabilities and patches that we must apply immediately is valuable. The automation of the tasks allows us to spend less time in that area."
"Vicarius vRx's ability to patch third-party software is particularly valuable for us."
"Vicarius vRx's primary strength is its user-friendly interface."
"Vicarius vRx offers several advantages, especially for organizations with diverse operating systems and applications requiring frequent patching."
"Vicarius vRx has reduced our mean time to remediate vulnerabilities by 20%."
"The system prioritizes vulnerabilities, identifying high, medium, and low risks, allowing us to focus on high-risk applications. It allows us to focus on high-risk applications and do the updates."
"The ability to consolidate vulnerability discovery, prioritization, and remediation in one platform is crucial."
 

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."
"It would be nice for the professional module to include some of the reports available in the expert module."
"The product must be more comprehensive."
"The professional version is not very scalable."
"Remediation needs improvement."
"The price and scalability of the solution could improve."
"EQA's and dashboards should be addressed in the next release."
"The user interface of Tenable Nessus feels outdated and could be more user-friendly."
"The price could be reduced."
"Areas that need improvement include the CPU usage and the delay between sending updates and receiving feedback on their status."
"It would be beneficial if Vicarius vRx could implement smart tagging or suggest tags to create a group for these development tools, signifying that they should not be regularly updated."
"We are now in the process of trying to get our money back because the tool does not work."
"I would be happy if the patch update could be downloaded to the Vicarius server and then implemented on the client."
"I would like to see more network architecture elements with patches."
"I would like to see a way to build a virtual environment where we can test patches in real-time before we deploy."
"While I appreciate the automation of vulnerability management, Vicarius vRx's current manual patchless application is a point for improvement."
"The patchless protection feature is currently difficult to understand and could be made more user-friendly."
 

Pricing and Cost Advice

Information not available
"The solution is expensive."
"Tenable Nessus needs to be licensed. We own a license for the security center and that license is charged by the number of IP addresses that you can scan. You're allowed to have as many scanners as you want and there's no license for the number of scanners. We have a bunch of Nessus scanners out there, and as long as we're comfortable with staying under that IP address limit, that's really all we have to be concerned about."
"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."
"The price of Tenable Nessus is too expensive for each service center."
"Its price is high for Libya. The companies here in Libya don't have the awareness of and a good budget for cybersecurity services. If you want them to go for a product, you need to provide something different. This differentiation is related to the price. They should give about 40% to 45% discount per person on the current cost."
"The solution has a single price for unlimited assets."
"The solution has free options."
"We paid about six thousand dollars per license."
"The pricing is great because we are a reseller of the product. It is really up to us and Vicarius, and they are very easy to work with."
"The pricing was very reasonable and fair compared to other products. I liked that there was no tiered system. One price gave access to everything, which is nice. It is not something you get too often with enterprise IT."
"Vicarius vRx is priced competitively within the market."
"Vicarius vRx offers a competitive price point for the features it provides."
"I am not sure how much it costs, but it would have saved us some costs."
"Vicarius' pricing was reasonable compared to the other systems we evaluated."
"Vicarius vRx is reasonably priced."
"I do not use other solutions, so I cannot compare its pricing to others, but its price seems okay."
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Top Industries

By visitors reading reviews
Financial Services Firm
11%
Computer Software Company
9%
Manufacturing Company
8%
Government
6%
Computer Software Company
12%
Financial Services Firm
10%
Government
10%
Manufacturing Company
10%
Computer Software Company
14%
Media Company
9%
Non Profit
9%
Manufacturing Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business38
Midsize Enterprise19
Large Enterprise35
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise7
Large Enterprise3
 

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...
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...
What is your experience regarding pricing and costs for Vicarius vRx?
I do not use other solutions, so I cannot compare its pricing to others, but its price seems okay.
What needs improvement with Vicarius vRx?
I would be happy if the patch update could be downloaded to the Vicarius server and then implemented on the client. C...
What is your primary use case for Vicarius vRx?
We use Vicarius vRx to manage all third-party software updates. Previously, we could manage Windows updates, but thir...
 

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 Tenable Nessus vs. Vicarius vRx and other solutions. Updated: September 2025.
868,787 professionals have used our research since 2012.