--- title: Tenable Nessus Reviews meta_title: 'Tenable Nessus Reviews 2026: Details, Pricing, & Features | G2' meta_description: Filter 321 reviews by the users' company size, role or industry to find out how Tenable Nessus works for a business like yours. aggregate_rating: rating_value: 4.5 review_count: 321 scale: '5' date_modified: '2026-11-11' parent_category: name: "DevSecOps\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t" url: https://www.g2.com/categories/devsecops ---

Tenable Nessus Pros and Cons: Top 5 Advantages and Disadvantages

Quick AI Summary Based on G2 Reviews

Generated from real user reviews

Users appreciate the comprehensive and accurate vulnerability detection of Tenable Nessus, enabling efficient management of network security. (21 mentions)
Users value the high accuracy in vulnerability detection provided by Tenable Nessus, enabling effective risk management. (19 mentions)
Users praise the high accuracy of automated scanning in Tenable Nessus, enhancing vulnerability management efficiently. (18 mentions)
Users find the intuitive interface of Tenable Nessus easy to navigate, enhancing their overall user experience. (17 mentions)
Users appreciate the high accuracy and extensive plugin support of Tenable Nessus for effective vulnerability scanning. (15 mentions)
Users find the slow scanning times can disrupt production, often lasting days depending on the environment. (8 mentions)
Users find the cost of Tenable Nessus to be excessively high, impacting both maintenance and accessibility. (6 mentions)
Users note limited features in Tenable Nessus, impacting user experience and requiring additional tools for full functionality. (6 mentions)
Users express concerns about the complexity of Tenable Nessus, noting a steep learning curve and high operational costs. (5 mentions)
Users experience false positives, occasionally identifying incorrect vulnerabilities, including issues with some Windows patch updates. (5 mentions)

5 Pros or Advantages of Tenable Nessus

5 Cons or Disadvantages of Tenable Nessus

Tenable Nessus Reviews (321)

View 1 Video Reviews
Reviews

Tenable Nessus Reviews (321)

View 1 Video Reviews
4.5
321 reviews
Search reviews
Filter Reviews
Clear Results
G2 reviews are authentic and verified.
Verified User in Banking
AB
Verified User in Banking
Small-Business (50 or fewer emp.)
"Tenable is a must for Vulnerability Scanning"
4.5/5
What do you like best about Tenable Nessus?

Tenable Nessus is easy to setup and easy to navigate. The reporting gives good detail to help remediate the vulnerabilities. Review collected by and hosted on G2.com.

What do you dislike about Tenable Nessus?

I have been using Tenable Nessus for many years and I can't say I have any dislikes for the product. Review collected by and hosted on G2.com.

Verified User in Primary/Secondary Education
UP
Verified User in Primary/Secondary Education
Enterprise (> 1000 emp.)
"Nessus is a great tool for vulnerability scanning and remediation guidance"
5/5
What do you like best about Tenable Nessus?

Nessus is a powerful tool with extensive reporting and automation. Review collected by and hosted on G2.com.

What do you dislike about Tenable Nessus?

I haven't found anything to dislike about Nessus. Review collected by and hosted on G2.com.

Verified User in Government Administration
AG
Verified User in Government Administration
Mid-Market (51-1000 emp.)
"Great Tool"
5/5
What do you like best about Tenable Nessus?

The Nessus scans give us insight into areas we might have vulnerabilities Review collected by and hosted on G2.com.

What do you dislike about Tenable Nessus?

The past scans can take up disk space. I haven't found a good way to automatically remove the old ones. Review collected by and hosted on G2.com.

DV
Deepsan V.
IT Security Specialist
Financial Services
Enterprise (> 1000 emp.)
"Tenable Nessus professional"
4/5
What do you like best about Tenable Nessus?

Nessus has one of the largest libraries of vulnerability and configuration checks, covering a wide range of systems, devices, and applications. Despite its comprehensive feature set, Nessus is known for its user-friendly interface, which can help users get up and running quickly. Review collected by and hosted on G2.com.

What do you dislike about Tenable Nessus?

While Nessus is known for its comprehensive vulnerability scanning capabilities, it can sometimes produce false positives, which can lead to unnecessary work for security teams. Review collected by and hosted on G2.com.

DN
Divi N.
software developer
Small-Business (50 or fewer emp.)
"Best free to use vulnerability scanner"
4/5
What do you like best about Tenable Nessus?

-Free to use

-Has community version where you can use Nessus for free to some extent

-Great user interface

-It also identifies misconfiguration in code

-Versatile tool

-Great dashboards and reporting mechanism Review collected by and hosted on G2.com.

What do you dislike about Tenable Nessus?

-I have only used free community version and it has quite a few limitation with number of hosts and scans etc. Review collected by and hosted on G2.com.

Verified User in Higher Education
UH
Verified User in Higher Education
Small-Business (50 or fewer emp.)
"Smooth Experience"
5/5
What do you like best about Tenable Nessus?

I started using Nessus as an undergrad student and it was so easy that I could run scans without any tutorials. Review collected by and hosted on G2.com.

What do you dislike about Tenable Nessus?

There is nothing to like about it. Although the UI can be modernise Review collected by and hosted on G2.com.

PS
Pratik S.
Research Assistant
Computer & Network Security
Mid-Market (51-1000 emp.)
"Nessus is one of the powerful tool in scanning vulnerabilities."
4.5/5
What do you like best about Tenable Nessus?

The format of the report with vulnerabilities and it's associated CVE with a detailed explanation is really commendable. Review collected by and hosted on G2.com.

What do you dislike about Tenable Nessus?

The limited availability of features in a free Nessus software. Review collected by and hosted on G2.com.

Jatin .
J
Jatin .
Security Analyst
Enterprise (> 1000 emp.)
"One stop solution for Vulnerability Detection and Management"
4/5
What do you like best about Tenable Nessus?

1. Detection capabilities are quite good in comparison to number of other similar solutions.

2. Easy to navigate and use GUI.

3. Most important, their plugin repo is always to the mark and updated, which help detects critical vulnerability without significant delays. Review collected by and hosted on G2.com.

What do you dislike about Tenable Nessus?

1. Nothing as such to complain of, as the major purpose is being handled in very efficient way, though scan time and results sometimes remain inconsistent. Review collected by and hosted on G2.com.

Lavesh K.
LK
Lavesh K.
L1 NOC Engineer
Small-Business (50 or fewer emp.)
"Nessus Review"
5/5
What do you like best about Tenable Nessus?

Tenable Nessus is versatile and flexible to use. This software can be used for security scans, network scanning, vulnerability assessment, and scanning. Its interface is user-friendly and anyone can use it very easily. It has the ability to automate scanning and reporting tasks. This software can help organizations identify vulnerabilities and threats to their systems and networks. Review collected by and hosted on G2.com.

What do you dislike about Tenable Nessus?

It can be expensive and may be used in larger organizations that require high functionality and support. It is designed for a user-friendly interface but still requires knowledge or training to be useful. It consumes more time for scanning. It is up to the individual to decide whether they require this software based on their software requirements. Review collected by and hosted on G2.com.

Verified User in Hospitality
UH
Verified User in Hospitality
Enterprise (> 1000 emp.)
"Leading and best vulnerability scanning tool"
4/5
What do you like best about Tenable Nessus?

1. Tenable Nessus is always up-to-date with the vulnerabilities database which scans for all the latest vulnerabilities.

2. They provide decent customer support.

3. It solves the implementation in 2 ways - agent-based and credentials-based.

4. It provides an interactive and nice GUI as well along with easy integration with other tools. Review collected by and hosted on G2.com.

What do you dislike about Tenable Nessus?

It cannot pull asset tags itself. We need to set up a whole different automation to ingest custom asset tags into Tenable nessus. Review collected by and hosted on G2.com.