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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 (4th), Vulnerability Management (3rd), Configuration Management Databases (2nd), Risk-Based Vulnerability Management (1st)
 

Mindshare comparison

As of November 2025, in the Container Security category, the mindshare of CoreOS Clair is 0.6%, 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 Clair0.6%
Other97.0%
Container Security
 

Featured Reviews

Felipe Giffu - PeerSpot reviewer
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.
Ankesh Raj - PeerSpot reviewer
Real-time responses and reporting streamline vulnerability management
Qualys VMDR provides a real-time response and reporting feature, which is excellent. It allows us to see real-time graphs and reports for every asset, server, and more, which is very user-friendly. Our clients have given good feedback, and they are satisfied with the tool. We use it daily to fix vulnerabilities by connecting with infrastructure to remediate. The feedback from the client side is very 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."
"The initial setup is straightforward."
"I am impressed with the VMDR feature."
"It's a good product. After the scan our internet works well. It scans our security posture."
"The prioritization feature is great. I think it has all of the advanced features that we need."
"The best features of Qualys VMDR are its patch management capabilities and the ability to mitigate vulnerabilities automatically."
"Continuous monitoring is a crucial feature that we use more frequently."
"The most valuable feature is automation."
"The reporting functionality is great."
 

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."
"They're still evolving their platform in terms of reporting capabilities."
"Qualys VM could improve by having more skilled support personnel."
"In terms of improvement for the web application console, in the older version, things were more segregated and presented in a brief format."
"It is more expensive vs. other products on the market."
"This solution could be improved by extending the agent capabilities to different operating systems including Mac and Linux. We would also like the capability to easily check for vulnerability in assets in the IOTs."
"It is a struggle to be able to pull our report and to be able to do onboarding using automated tools."
"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."
"It would be helpful to have features for better tracking, including options for adding relevant owners or supporting groups for each asset."
 

Pricing and Cost Advice

"CoreOS Clair is open-source and free of charge."
"Qualys Virtual Scanner Appliance isn't expensive right now. But the price for their product bundles could be better."
"An annual license for a single scanner costs around $3,000."
"Qualys VM is reasonably priced."
"Qualys is a pay-as-you-go model, so there's flexibility to the pricing."
"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 pricing is very competitive."
"The solution is expensive."
"The solution is costly."
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Top Industries

By visitors reading reviews
Manufacturing Company
13%
Computer Software Company
11%
Financial Services Firm
11%
Performing Arts
9%
Financial Services Firm
17%
Computer Software Company
11%
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: September 2025.
873,085 professionals have used our research since 2012.