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CoreOS Clair vs Qualys VMDR comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 19, 2025

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
29th
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
95
Ranking in other categories
IT Asset Management (3rd), Vulnerability Management (3rd), Configuration Management Databases (2nd), Risk-Based Vulnerability Management (1st)
 

Mindshare comparison

As of December 2025, 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 2.4%, down from 2.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Container Security Market Share Distribution
ProductMarket Share (%)
Qualys VMDR2.4%
CoreOS Clair0.7%
Other96.9%
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.
reviewer2753559 - PeerSpot reviewer
Cyber Security Solution Engineer at a computer software company with 201-500 employees
Reduces vulnerability exposure time and automates workflow for efficient security management
One area where Qualys VMDR can be improved is the missing feature for deploying agents for over 1,000 assets, as we need to do it manually. Qualys doesn't have its own tool to deploy the agents all at once, so we need to use third-party tools such as BigFix or something else to deploy the agents, which is my main concern and should be fixed by the Qualys team. That is the main thing I would like to see changed, and apart from that, everything is good.

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."
"Tech support is helpful."
"Qualys VM has allowed us to know the vulnerabilities we need to prioritize based on the threat levels and the possible impact if there's an intrusion."
"Performs automated, regular scans in the network."
"The most valuable feature is the vulnerability assessment."
"I like Qualys because it is a very complete product, more so than Tenable."
"Qualys VM's best features are vulnerability management and customizable scoring."
"It is a stable solution."
"The features that are most valuable are the identification, scan features, and the identification of vulnerabilities."
 

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."
"Endpoint stability and fault resolution could be improved."
"The reporting needs improvement. It should generate much more stuff like field reports."
"Qualys VMDR identifies vulnerabilities and suggests fixes. However, it does not automate patching unless the patch management module is purchased separately."
"It's too early for me to say if there is any room for improvement since we're in the first couple of months of using this solution."
"If anything, I would like to see the user interface modernized a bit more."
"The only improvement I can think of is on the implementation side. At times it is a bit slow."
"Qualys VMDR is basically susceptible to false positives, and false negatives."
"Improve the user interface."
 

Pricing and Cost Advice

"CoreOS Clair is open-source and free of charge."
"The product is more expensive than that of any other vendor."
"We do see over $100,000 in terms of price, for mid-size programs. You likely will pay more than $100,000 without any discount. It is a bit pricey."
"Usually every implementation is different and the quote is in function of number of assets."
"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."
"The solution is reasonably priced for the value it provides."
"In Nigerian Naira, we spend about roughly four to five million to use this solution and this is expensive compared to solutions like Nessus."
"The price is very reasonable."
"The solution is costly."
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Top Industries

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

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business20
Midsize Enterprise12
Large Enterprise69
 

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?
One area where Qualys VMDR can be improved is the missing feature for deploying agents for over 1,000 assets, as we need to do it manually. Qualys doesn't have its own tool to deploy the agents all...
 

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.
879,371 professionals have used our research since 2012.