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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
3rd
Average Rating
8.4
Reviews Sentiment
7.3
Number of Reviews
81
Ranking in other categories
No ranking in other categories
Zafran Security
Ranking in Vulnerability Management
27th
Average Rating
9.6
Reviews Sentiment
8.1
Number of Reviews
3
Ranking in other categories
Continuous Threat Exposure Management (CTEM) (3rd)
 

Mindshare comparison

As of May 2025, in the Vulnerability Management category, the mindshare of Tenable Nessus is 9.8%, down from 13.2% compared to the previous year. The mindshare of Zafran Security is 0.6%, up from 0.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management
 

Featured Reviews

HarshBhardiya - PeerSpot reviewer
Provided increased visibility across the organization's servers
The user interface of Tenable Nessus feels outdated and could be more user-friendly. Additionally, the documentation is not well-organized, which can be confusing when searching for solutions or specific information related to Tenable Nessus Professional. The reporting feature could be improved by allowing users to create their own templates instead of relying on predefined ones.
Israel Cavazos Landini - PeerSpot reviewer
Weekly insights and risk analysis facilitate informed security decisions
I appreciate the weekly insights Zafran provides, which include critical topics for networks and IT security, allowing us to evaluate which insights apply to our environment. The organization score feature is valuable to keep the leadership team updated on how our infrastructure fares security-wise. The applicable risk level versus base risk level feature is beneficial because prior to Zafran, we only used the base risk level, but now understand that risk depends on the asset itself. Zafran is an excellent tool.

Quotes from Members

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

Pros

"The reports are pretty nice and easy to understand."
"The most valuable feature is the breadth of vulnerabilities that it finds. It's able to find across a lot of different platforms and operating systems. It's also able to combine local testing with network-based testing."
"Easy to set up vulnerability scanner with good stability and a responsive technical support team."
"We have around 500 virtual machines. Therefore, we conduct monthly scans and open tickets for our developers to address identified vulnerabilities. These scans cover the servers, other network equipment, and appliances in our infrastructure."
"I like its ease of use. It has the script that is pre-built in it, and you just got to know which ones you're looking for."
"Overall Zoom is a good solution."
"The plug-in text information is quite useful."
"The product's most valuable features are vulnerability and asset management. It can define the rules and validate the configuration."
"We are able to see the real risk of a vulnerability on our environment with our security tools."
"Zafran is an excellent tool."
"Zafran has become an indispensable tool in our cybersecurity arsenal."
 

Cons

"The report for counters is too simple and would be improved by a dashboard."
"The reporting is a bit cumbersome."
"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."
"There is room for improvement in finishing the transition to the cloud. We'd like to see them keep on improving the Tenable.io product, so that we can migrate to it entirely, instead of having to keep the Tenable.sc on-prem product."
"One significant drawback we encounter is the tool's tendency to flag patched packages incorrectly. For instance, if a package is patched by Debian maintainers but not updated to a major or minor version, Nessus may still flag it as vulnerable based on its database. This discrepancy leads to false alarms and requires our developers, system admins, and DevOps teams to address them."
"They could make their reporting a little better."
"Nessus' reporting could be more user-friendly."
"Consumes more system resources when it's running."
"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."
 

Pricing and Cost Advice

"When comparing the price of Tenable Nessus to other similar solutions, such as Acunetix, Tenable Nessus is not as expensive. It is averagely priced in the market. We pay for the solution annually."
"The solution has free options."
"The solution is expensive."
"In general, it is extremely expensive."
"The price of Tenable Nessus is too expensive for each service center."
"Tenable Nessus is affordable."
"The price of the solution is reasonable."
"Nowadays, your vulnerability applications are going to be kind of pricey because lots of them, including Rapid7, are based upon a base price, but then they add in the nodes. That's where they get you. If you're a big network, obviously, you need to scan everything. Therefore, it's going to be costly. The risk and insurance money associated with having ransomware on my networks is going to cost me more money, time, and marketing than the price of the tool. That's why I'm speaking only as an information security officer to security operations. This is the tool that is there in my toolbox to say whether we vulnerable or not. At this point, I don't care about how much it costs my company to have it because if I wasn't able to report it and we got ransomware, then who cares? I'm probably going to be out of business because it happened. That's why I don't care about the price. I have it, and I could use it effectively and do my report. At the end of the day, even if we get ransomware, as long as I reported it, followed my protocol, and put in the change, irrespective of whether it was ignored or denied, I did my job."
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Top Industries

By visitors reading reviews
Educational Organization
36%
Computer Software Company
9%
Financial Services Firm
7%
Government
7%
Computer Software Company
13%
Financial Services Firm
12%
Manufacturing Company
7%
Government
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
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 do you like most about Tenable Nessus?
We have around 500 virtual machines. Therefore, we conduct monthly scans and open tickets for our developers to address identified vulnerabilities. These scans cover the servers, other network equi...
What is your experience regarding pricing and costs for Zafran Security?
I find that the pricing for Zafran aligns well with the comprehensive features it offers. The asset and user-based licensing model is particularly advantageous as it allows for scalability in line ...
What needs improvement with Zafran Security?
Zafran is a new startup. Features are continuously being added or improved. 1) Continued integrations with existing (less popular) security tools. Not everyone is using the Gartner Magic Quadrant u...
What is your primary use case for Zafran Security?
We connect this to our vulnerability scanner as input, our security tools to better determine risk, and our change management tool to provide risk-based vulnerabilities to the remediation teams. We...
 

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 2025.
850,236 professionals have used our research since 2012.