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CoreOS Clair vs Qualys VMDR comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jan 25, 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

CoreOS Clair
Ranking in Container Security
31st
Average Rating
8.6
Reviews Sentiment
7.6
Number of Reviews
2
Ranking in other categories
No ranking in other categories
Qualys VMDR
Ranking in Container Security
9th
Average Rating
8.4
Reviews Sentiment
7.0
Number of Reviews
96
Ranking in other categories
IT Asset Management (3rd), Vulnerability Management (3rd), Configuration Management Databases (3rd), Risk-Based Vulnerability Management (1st)
 

Mindshare comparison

As of February 2026, in the Container Security category, the mindshare of CoreOS Clair is 0.7%, up from 0.4% compared to the previous year. The mindshare of Qualys VMDR is 2.3%, down from 2.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Container Security Market Share Distribution
ProductMarket Share (%)
Qualys VMDR2.3%
CoreOS Clair0.7%
Other97.0%
Container Security
 

Featured Reviews

Felipe Giffu - PeerSpot reviewer
Red Hat Solution Architect at Seprol Computadores e Sistemas
An operational system, similar to Linux where you can run your applications inside containers
With CoreOS, you can run your applications inside containers. For example, if you have an application that needs to run on Linux, you can create and install a container. However, it's important to note that you don't install CoreOS inside a container; CoreOS is the host operating system that manages containers. When you mentioned using Nacula as part of your CI/CD pipeline, it means your application is deployed and managed automatically through the CI/CD process. Containers are used to deploy your application within this pipeline, but CoreOS does not run inside these containers. Instead, CoreOS is the base operating system that supports and manages these containers.
Vaibhav Ghule - PeerSpot reviewer
Soc Lead & Edr Administration at Persistent Systems
Continuous risk-based monitoring has strengthened incident response and vulnerability prioritization
I haven't explored Qualys VMDR's vulnerability lifecycle automation yet. One of my analysts mentioned that queries lack grouping operators in Qualys VMDR. From my experience, I would appreciate improvements in the query options in Qualys VMDR, specifically in the query-building process where I would need more features and operators. Additionally, we have been facing issues with Qualys on the cloud level. We cannot download the configuration profile from the cloud agent, and it is showing a pending action for download. During 2025, we noticed outages of Qualys a couple of times. I want to mention that there is an issue with receiving timely RCA deliveries. While this is not necessarily about the tool, it relates to support. The support has not been very responsive, and we are receiving RCAs a little delayed whenever we raise support cases or communicate with the TAMs. Additionally, the UI has a slight latency, which I and my team have experienced. They have also reported this latency issue when navigating through different pages.

Quotes from Members

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

Pros

"With CoreOS, you can run your applications inside containers. For example, if you have an application that needs to run on Linux, you can create and install a container. However, it's important to note that you don't install CoreOS inside a container; CoreOS is the host operating system that manages containers."
"CoreOS Clair's best feature is detection accuracy."
"I am impressed with the VMDR feature."
"They also have threat detection which maps threats. There is a feed that comes from Qualys when a new vulnerability is found. It tells us which machines are infected with that vulnerability."
"Provides great functionality."
"Performs automated, regular scans in the network."
"The most valuable feature of the solution is the external channel."
"The best features of Qualys VMDR are its patch management capabilities and the ability to mitigate vulnerabilities automatically."
"Intuitive and easy to use."
"The most valuable feature is the vulnerability assessment."
 

Cons

"An area for improvement is that CoreOS Clair doesn't provide information about the location of vulnerabilities it detects."
"It can be improved in its support response. They usually take up to seven days to resolve the issue."
"The customer support is very bad."
"Sometimes we face a problem with accessing the tool and not getting an expected result. From a technology point of view, they need to look into this."
"Qualys VM could improve by having more skilled support personnel."
"The response time of technical support takes a while."
"Qualys VMDR should improve authenticated scanning capabilities."
"They can tweak their UI since the new version seems a bit jumbled up, and the old UI was more user-friendly."
"Qualys should improve their customer experience. They need to improve the tech support experience and the turnaround time."
"From the application security perspective, Qualys has a way to go."
 

Pricing and Cost Advice

"CoreOS Clair is open-source and free of charge."
"Qualys is cheaper and more affordable than other solutions."
"The solution is costly."
"Qualys Virtual Scanner Appliance isn't expensive right now. But the price for their product bundles could be better."
"The product is more expensive than that of any other vendor."
"The pricing is very competitive."
"The license is on a yearly basis."
"The solution is reasonably priced for the value it provides."
"I used to work there, so I never paid for the product. As an employee, we get a lifetime license for personal use, and that's what I'm using. It is a comprehensive platform, so there is a lot more to it. There could be other solutions that are probably a little bit cheaper, but it depends on what people need. Different people have different needs. It offers many things on the same platform. If you add all the things up, it should be cheaper, but I have not done any analysis specifically."
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Top Industries

By visitors reading reviews
Financial Services Firm
13%
Performing Arts
13%
Manufacturing Company
12%
Comms Service Provider
8%
Financial Services Firm
16%
Computer Software Company
10%
Manufacturing Company
7%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business20
Midsize Enterprise12
Large Enterprise70
 

Questions from the Community

What is your experience regarding pricing and costs for CoreOS Clair?
If you work with CoreOS or OpenShift, you don't need to pay for CoreOS separately. When you pay for OpenShift, you get CoreOS included, so you don't need to pay for the operating system separately....
What needs improvement with CoreOS Clair?
It can be improved in its support response. They usually take up to seven days to resolve the issue.
What is your primary use case for CoreOS Clair?
We use the tool to manage and secure the event file system. CoreOS Clair is an operational system that is very similar to Linux and offers benefits to other Linux operating systems. One major advan...
What do you like most about Qualys VMDR?
I like that we have many scanners and channels that don't overload. It helps us scan and track easily. Also, the tagging system is good for tagging. We can still use QualysAgent task ID tools even ...
What is your experience regarding pricing and costs for Qualys VMDR?
My experience with pricing, setup cost, and licensing shows that we can consider both time and money saved.
What needs improvement with Qualys VMDR?
I haven't explored Qualys VMDR's vulnerability lifecycle automation yet. One of my analysts mentioned that queries lack grouping operators in Qualys VMDR. From my experience, I would appreciate imp...
 

Also Known As

No data available
Qualys VM, QualysGuard VM, Qualys Asset Inventory, Qualys Container Security
 

Overview

 

Sample Customers

eBay, Veritas, Verizon, SalesForce
Agrokor Group, American Specialty Health, American State Bank, Arval, Life:), Axway, Bank of the West, Blueport Commerce, BSkyB, Brinks, CaixaBank, Cartagena, Catholic Health System, CEC Bank, Cegedim, CIGNA, Clickability, Colby-Sawyer College, Commercial Bank of Dubai, University of Utah, eBay Inc., ING Singapore, National Theatre, OTP Bank, Sodexo, WebEx
Find out what your peers are saying about CoreOS Clair vs. Qualys VMDR and other solutions. Updated: December 2025.
881,707 professionals have used our research since 2012.