Tenable Nessus
320
Reviews
4.5
Star rating
#4
Rank in Vulnerability Scanner
Pros and cons
Pros
- Vulnerability Identification
- Vulnerability Detection
- Automated Scanning
- Ease of Use
- Features
- User Interface
Cons
- Slow Scanning
- Expensive
- Limited Features
- False Positives
- Slow Performance
- Complexity
Traffic & LLM citations
Source: G2 review data
Winning from
Losing to
Key stats
+125.0%
69
Mid-Market
4
Adoption by company size
| Segment | Share of reviews |
|---|---|
| Small Business | 27.1% |
| Mid-Market | 39.7% |
| Enterprise | 33.1% |
Quarterly history
| Quarter | Reviews | Star rating |
|---|---|---|
| 2024 Q4 | 7 | 4.8 |
| 2025 Q1 | 1 | 5.0 |
| 2025 Q2 | 2 | 4.5 |
| 2025 Q3 | 2 | 4.3 |
| 2025 Q4 | 7 | 4.7 |
| 2026 Q1 | 4 | 4.3 |
| 2026 Q2 | 4 | 4.5 |
| 2026 Q3 | 9 | 4.4 |
Satisfaction ratings
Ease of Use9.1
Ease of Setup9.0
Quality of Support8.7
Meets Requirements9.2
What reviewers say
Smooth SIEM Integration and Standout Agents
4.5
“The agents and their smooth integration with the SIEM stand out the most for me.”
Escaneo de Vulnerabilidades Simplificado y Confiable
5.0
“Me gusta que Tenable Nessus es muy fácil de usar, ya que la interfaz es realmente intuitiva, lo cual es genial para los nuevos usuarios. Además, es útil porque te muestra dónde está el problema si un escaneo no se completa, o al menos te da una pista de dónde revisar. También me ”
Seamless Integration, Strong Performance, and Great Value
4.0
“Integration, Compatibility, performance, no slowness on network and pricing”