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Nucleus Security vs Vicarius vRx comparison

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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
7.3
Number of Reviews
39
Ranking in other categories
Container Security (11th), Cloud Workload Protection Platforms (CWPP) (8th), 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
54th
Average Rating
8.0
Reviews Sentiment
6.9
Number of Reviews
1
Ranking in other categories
Application Security Tools (40th), Risk-Based Vulnerability Management (20th), Continuous Threat Exposure Management (CTEM) (16th)
Vicarius vRx
Ranking in Vulnerability Management
16th
Average Rating
8.0
Reviews Sentiment
7.6
Number of Reviews
21
Ranking in other categories
Patch Management (6th), Risk-Based Vulnerability Management (8th)
 

Mindshare comparison

As of June 2026, in the Vulnerability Management category, the mindshare of Qualys TotalCloud is 1.0%, up from 0.9% 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 Vicarius vRx is 0.9%, up from 0.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management Mindshare Distribution
ProductMindshare (%)
Qualys TotalCloud1.0%
Vicarius vRx0.9%
Nucleus Security1.0%
Other97.1%
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.
reviewer2850051 - PeerSpot reviewer
Cyber Security Architect at a retailer with 10,001+ employees
Unified vulnerability data has transformed risk prioritization and optimized remediation effort
The best features that Nucleus Security offers in my experience are the unified integrations with all of the different vulnerability management platforms. It is helping quite a lot to unify all of that. It also offers good prioritization based on the EPSS or the CVSS score, as well as different other factors including Mandiant threat intelligence and similar aspects. It helps bring it all into one big picture instead of different silos of vulnerabilities. The integrations make my job easier because I can connect my other tools, which is the most important part of this tool to bring in all the vulnerabilities from the different other tools. The prioritization changed it from chasing vulnerabilities or pushing colleagues to patch vulnerabilities to providing colleagues with their vulnerabilities and requesting remediation and patching. Nucleus Security positively impacts my organization by bringing awareness to vulnerability management since we can actually determine how many vulnerabilities we have and how critical the risk is, or we can quantify the risk overall for the company.
OrenBen Shalom - PeerSpot reviewer
Information Security Manager at Pango
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

"If I had to say something positive about the product that brings me the biggest benefit, I would say it has accurate reports, gets new update CVEs, zero-day attack detection, and is easy to manage with its GUI."
"The most valuable feature is the consolidated information that it provides from various platforms."
"Qualys TotalCloud has significantly improved our organization by automating our reporting processes, reducing the time spent on report creation from two hours to less than fifteen to twenty minutes."
"By integrating TotalCloud, we have significantly reduced vulnerabilities in our deployment pipeline."
"Once you have your vulnerabilities fixed and your patches pushed out using Qualys TotalCloud, then you are able to eliminate threats and cyber risk."
"Vulnerability and threat detection and assessment of the criticality of the vulnerabilities exposed are most valuable."
"The agent and agentless scanning in TotalCloud, particularly the FlexScan method, is incredibly valuable. With traditional scanning approaches, we had to give IP ranges and whitelist IPs. All that is now simplified. FlexScan requires minimal intervention, and after configuration, it automatically collects data and performs necessary scans."
"Qualys TotalCloud fulfills all these needs."
"The best features that Nucleus Security offers in my experience are the unified integrations with all of the different vulnerability management platforms."
"Vicarius vRx has reduced 70% of the time we spend on patching."
"Vicarius vRx's primary strength is its user-friendly interface."
"Vicarius vRx has reduced meantime to remediate by 90 percent."
"The dashboard is quite easy to manage. The automation aspect is also very valuable."
"The ability to consolidate vulnerability discovery, prioritization, and remediation in one platform is crucial."
"The most efficient feature of Vicarius vRx is the ability to group assets, such as by time zone, allowing for targeted patching and streamlined management."
"Vicarius vRx consolidates vulnerability discovery, prioritization, and remediation in a single platform."
"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."
 

Cons

"Their customer support needs improvement."
"The areas in the solution that have room for improvement include the UI/UX design, which should be improved, and they should integrate more artificial intelligence into the product."
"Qualys TotalCloud has the potential to improve by integrating a hybrid platform for comprehensive management of both on-premises and cloud infrastructures."
"Two areas for improvement in Qualys TotalCloud are the speed of the public cloud platform and vulnerability detection."
"Areas that need improvement in every solution include the remediation part. The remediation steps should be simple enough for everyone to understand."
"The response part of the Cloud Detection and Response (CDR) module can be improved."
"I sometimes have difficulty detecting or uninstalling certain versions of applications, which I have to do manually."
"With the growing integration of AI, I would like Qualys to enhance its service offerings to better accommodate AI-related risks."
"Nucleus Security needs a better view into exposure management, as exposure management and attack path management are missing."
"The multi-tenant portal has room for improvement."
"The network device vulnerability scans can be improved. It would be helpful to be able to mitigate those vulnerabilities using SSH or SNMP to get those those updates out to those devices. I don't know if that is possible because it doesn't run an agent. But at the very least, having that CPE information relative to network devices would be incredibly helpful."
"Vicarius vRx's application management capabilities could be improved by allowing users to manage and uninstall applications directly within the GUI, eliminating the need for scripting and streamlining the process."
"I would appreciate additional filter options, such as the ability to filter by AWS tags."
"The patchless protection feature is currently difficult to understand and could be made more user-friendly."
"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. Currently, they just send a link to the software."
"We did some automation. We kicked off scheduled updates to update our systems, but it did not work. When we attempted to scale the product and update multiple systems, we ran into a lot of issues. We also ran into the issue of it creating double assets."
 

Pricing and Cost Advice

"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."
"TotalCloud's price is about right where I would expect it to be."
"The cost is high, but it meets our organizational needs."
"Qualys TotalCloud offers cost-effective licensing flexibility."
"As a middle management member, I do not have direct pricing knowledge, but based on the knowledge from our meetings, its pricing is competitive."
"It isn't cheap, but it's reasonable. It helps us to manage things with very few resources."
"The pricing for TotalCloud is attractive and competitive in the market. Given the features, especially the dashboard, I have no concerns regarding pricing."
"Qualys TotalCloud is cost-efficient and was selected for its value compared to other products."
Information not available
"The price of vRx seems fair. None of our clients complained about the pricing. They all thought it was reasonable. Once people understood what it does, it didn't take much to get them to sign up."
"I know we got it for a very cheap price, and I now see why. It was very cheap. It was maybe 12,000 or 14,000 dollars."
"I do not use other solutions, so I cannot compare its pricing to others, but its price seems okay."
"The pricing is fair."
"Vicarius' pricing was reasonable compared to the other systems we evaluated."
"Vicarius vRx is reasonably priced."
"I am not sure how much it costs, but it would have saved us some costs."
"In the past, Vicarius vRx was cheap, but now they have adjusted their pricing policy, resulting in higher renewal costs. We have had some conversations with them regarding a smaller jump in the renewal cost."
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Top Industries

By visitors reading reviews
Manufacturing Company
18%
Financial Services Firm
14%
Construction Company
7%
Comms Service Provider
7%
Computer Software Company
14%
Financial Services Firm
12%
Construction Company
9%
Comms Service Provider
6%
Computer Software Company
11%
Non Profit
11%
Media Company
9%
Manufacturing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business10
Midsize Enterprise3
Large Enterprise29
No data available
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise7
Large Enterprise3
 

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?
I think it can be improved by making it more practical, integrated, and easier for teams to apply in real-world workf...
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 N...
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...
 

Also Known As

Qualys TotalCloud with FlexScan
No data available
No data available
 

Overview

Find out what your peers are saying about Wiz, Tenable, Qualys and others in Vulnerability Management. Updated: June 2026.
900,747 professionals have used our research since 2012.