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Tenable Nessus vs WithSecure Elements Exposure Management (XM) comparison

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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

Zafran Security
Sponsored
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)
Tenable Nessus
Ranking in Vulnerability Management
1st
Average Rating
8.4
Reviews Sentiment
6.0
Number of Reviews
86
Ranking in other categories
No ranking in other categories
WithSecure Elements Exposur...
Ranking in Vulnerability Management
126th
Average Rating
10.0
Reviews Sentiment
6.6
Number of Reviews
1
Ranking in other categories
Cloud Security Posture Management (CSPM) (45th), Continuous Threat Exposure Management (CTEM) (24th)
 

Mindshare comparison

As of October 2025, in the Vulnerability Management category, the mindshare of Zafran Security is 1.0%, up from 0.1% compared to the previous year. The mindshare of Tenable Nessus is 7.4%, down from 11.3% compared to the previous year. The mindshare of WithSecure Elements Exposure Management (XM) is 0.0%, up from 0.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management Market Share Distribution
ProductMarket Share (%)
Tenable Nessus7.4%
Zafran Security1.0%
WithSecure Elements Exposure Management (XM)0.0%
Other91.6%
Vulnerability Management
 

Featured Reviews

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.
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The user interface of Tenable Nessus feels outdated and could be more user-friendly.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.
PP
Stable, scalable, and can be deployed on both cloud and on-premises
We usually need the solution to have extra protection against data breaches, as we have seen with our customers. The solution is deployed on the public cloud The solution works both outside and on-premises of the company, thus preventing secondary breaches from reaching the company's data. The…

Quotes from Members

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

Pros

"Overall, we have seen about eighty-seven percent reduction of the number of vulnerabilities that require urgency to remediate, specifically the number of criticals."
"We saw benefits from Zafran Security almost immediately after deploying it."
"Zafran has become an indispensable tool in our cybersecurity arsenal."
"We are able to see the real risk of a vulnerability on our environment with our security tools."
"Zafran is an excellent tool."
"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."
"Overall Zoom is a good solution."
"The most valuable feature is how it scanned and detected through its database to let us know exactly what fixes we needed to put in place for the vulnerabilities. It detects and it also gives you the way to fix it."
"The solution is great for scanning servers."
"The most valuable feature of Tenable Nessus is the dashboard. They are convenient to use."
"The solution is very stable."
"The automatic scanner and scheduler are pretty cool."
"The most valuable aspect of this solution is that you receive the entire report, which details the breakdown, especially in terms of critical, high, low, and mediums."
"The solution works both outside and on-premises of the company, thus preventing secondary breaches from reaching the company's data."
 

Cons

"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."
"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."
"The reporting feature needs to be improved."
"They could make their reporting a little better."
"Tenable Nessus application device assessment is one of the top tools. However, in the application security assessment, there are other tools that provide better, and more accurate findings."
"Tenable Nessus could improve the price."
"Online learning could be a bit better."
"The user interface of Tenable Nessus feels outdated and could be more user-friendly."
"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."
"Pricing is one of the most important features, and it is something that they can improve on."
"The cost of the solution has room for improvement."
 

Pricing and Cost Advice

Information not available
"We pay approximately $2,500 on a yearly basis."
"We incurred a single cost for a perpetual license, although I cannot comment on the price as this is above my management level."
"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 a single price for unlimited assets."
"The product is free."
"The is a free version of Tenable Nessus available."
"Our organization is huge so our license costs $30,000."
"Cost-wise, it's an affordable tool."
"The cost of the solution is mid-ranged but worth the price."
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Top Industries

By visitors reading reviews
Financial Services Firm
11%
Computer Software Company
9%
Manufacturing Company
8%
Government
6%
Computer Software Company
12%
Financial Services Firm
11%
Government
10%
Manufacturing Company
10%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business38
Midsize Enterprise19
Large Enterprise35
No data available
 

Questions from the Community

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...
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. Oftenti...
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 priorit...
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. Yo...
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 ...
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 addre...
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Overview

 

Sample Customers

Information Not Available
Bitbrains, Tesla, Just Eat, Crosskey Banking Solutions, Covenant Health, Youngstown State University
Information Not Available
Find out what your peers are saying about Tenable, Wiz, Qualys and others in Vulnerability Management. Updated: September 2025.
869,760 professionals have used our research since 2012.