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Tenable Nessus vs Zafran Security comparison

 

Comparison Buyer's Guide

Executive Summary

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

Tenable Nessus
Ranking in Vulnerability Management
2nd
Average Rating
8.4
Reviews Sentiment
6.0
Number of Reviews
88
Ranking in other categories
No ranking in other categories
Zafran Security
Ranking in Vulnerability Management
17th
Average Rating
9.6
Reviews Sentiment
7.8
Number of Reviews
6
Ranking in other categories
Continuous Threat Exposure Management (CTEM) (1st)
 

Mindshare comparison

As of May 2026, in the Vulnerability Management category, the mindshare of Tenable Nessus is 4.1%, down from 9.5% compared to the previous year. The mindshare of Zafran Security is 0.9%, up from 0.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management Mindshare Distribution
ProductMindshare (%)
Tenable Nessus4.1%
Zafran Security0.9%
Other95.0%
Vulnerability Management
 

Featured Reviews

MohammedJaffir - PeerSpot reviewer
Founder at Cipheroot
Has enabled me to reduce false positives and perform deep credential auditing with seamless integrations
I mostly use the configuration audit feature for the audit configuration as a scan policy, and I will use it for credential audit, which helps me scan credentials access such as local administrator or root access, performing a deeper and more accurate check of local configuration settings and file systems, making it a highly recommended feature. Regarding integration capabilities, we can integrate Tenable Nessus with SIM tools such as Splunk, IBM QRadar, and Azure Sentinel, as well as with ticketing systems such as ServiceNow, Jira, and Slack. There is no complexity as it is very easy to integrate everything. In terms of the reporting feature, while vulnerability scanning can throw some false positives, Tenable Nessus has very few, achieving a reduction of 75% to 80% false positives with manual analysis needed. We can generate standard Nessus reports that typically include host summaries and vulnerabilities by host and plugin, alongside solutions and remediation recommendations. The main benefits I get from Tenable Nessus are complete asset inventory and comprehensive attack surface management, allowing us to prioritize vulnerabilities based on risk, focusing on true risk and threat path analysis.
reviewer2707311 - PeerSpot reviewer
Sr. Information Security Analyst at a healthcare company with 501-1,000 employees
Effective, fast risk reduction with critical threat intelligence updates
The dashboarding and reporting functionality of Zafran Security is an area that definitely could use some improvements. Overall, you get some dashboards and widgets to start with that are helpful, but customization was lacking. It is definitely a weaker point of the product right now, but am confident this will be changing soon!

Quotes from Members

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

Pros

"To me, that was a better selling point because it was real: it wasn't demo data, it was our own network showing, "Hey, we're vulnerable because of this, and here's the tool that did it," which got us the buy-in we needed from upper management."
"The most valuable feature of Tenable Nessus is real-time monitoring."
"It is a stable solution; it is the best one in the world, and I am not considering any other solutions."
"Tenable Nessus is cheap and flexible."
"For me, the key value is the ease of use and integration with SIEMs because it has built-in integrations with IBM QRadar and others."
"The solution is very good at vulnerability management."
"So far, I am quite pleased with this product and don't have any complaints."
"The valuable feature for me is being able to ping the computers to do the automated scan and to come back and be able to see everything."
"Zafran is an excellent tool."
"With Zafran Security, it integrates with your security controls, allowing you to take that risk score and reduce it based on the controls in place or increase the risk based on different factors, such as if the issue is internet reachable or if there's an exploit in the wild."
"We are able to see the real risk of a vulnerability on our environment with our security tools."
"We saw benefits from Zafran Security almost immediately after deploying it."
"Overall, we have seen about eighty-seven percent reduction of the number of vulnerabilities that require urgency to remediate, specifically the number of criticals."
"Zafran has become an indispensable tool in our cybersecurity arsenal."
 

Cons

"Sometimes, the categorization for clients was tricky at first, however, they eventually got used to it."
"We would like to have the option of using the solution for the cloud as well as on-premises with the same license at the same time. That would be very helpful."
"But I believe the UI should be enhanced somewhat. For example, there are two ways to find a report, and people are frequently confused as to which is the correct method for locating a full report."
"The professional version is not very scalable. It's not really scalable considering the number of assets and clients that I have."
"I would like to see more on the automation side. There should be proper tools and support for automation in Tenable itself."
"We would like to have the option of using the solution for the cloud as well as on-premises with the same license at the same time. That would be very helpful."
"From my point of view, the solution basically is not for large enterprises."
"It would be a good idea if they have a simulation of attacks or a use case for finding a new vulnerability or dealing with a zero-day attack."
"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."
 

Pricing and Cost Advice

"The price of Tenable Nessus is much more competitive versus other solutions on the market."
"The product is free."
"The solution has a single price for unlimited assets."
"The pricing is much more manageable versus other products."
"There is an annual license required to use this solution."
"The is a free version of Tenable Nessus available."
"We paid about six thousand dollars per license."
"The solution is worth the cost. It's a good investment."
Information not available
report
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Top Industries

By visitors reading reviews
Manufacturing Company
10%
Financial Services Firm
10%
Government
9%
Computer Software Company
8%
Financial Services Firm
11%
Manufacturing Company
8%
Computer Software Company
7%
Outsourcing Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business40
Midsize Enterprise19
Large Enterprise35
No data available
 

Questions from the Community

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. You can easily prioritize vulnerabilities using attacker analytics. Overall, Rapid...
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 the program is such that if a company should desire to handle the installation t...
What is your experience regarding pricing and costs for Tenable Nessus?
Based on my experience, the pricing for Tenable Nessus is somewhat higher, but customers still want to pay for it, so it remains acceptable. The annual price increase of six to seven percent could ...
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 their public offering, we took responsibility for everything within that bounda...
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. Oftentimes, new companies try to be everything to everyone or overload the system with ...
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 prioritization of vulnerabilities and risks because we're a really large company with a...
 

Overview

 

Sample Customers

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. Zafran Security and other solutions. Updated: April 2026.
893,221 professionals have used our research since 2012.