Exposure and vulnerability management tools answer two plain questions: what do we have, and where can an attacker get in? The category covers external attack surface management (EASM), which finds your internet-facing assets from the outside. It covers cyber asset inventory (CAASM), which pulls every asset into one list. It covers vulnerability assessment and security scanning, which check those assets for known weaknesses. It covers exposure management and CTEM platforms, which rank what to fix first. Shadow IT discovery finds the apps staff set up on their own. Teams buy here when the asset list in the CMDB does not match what an attacker can see, or when findings pile up faster than anyone can fix them.
We cover 636 Exposure & Vulnerability Management tools, 208 free and 428 commercial.
Accuracy and depth improve over time. Last reviewed Sep 2026. Is something off? Reach out.
A subdomain scan tool that helps you find subdomains of a given domain.
An automation framework that runs multiple open-source subdomain bruteforcing tools in parallel using Docker Compose and custom wordlists.
A tool for generating permutations, alterations and mutations of subdomains and resolving them
A simple web-based interface for subdomain enumeration using the subfinder tool.
A script to extract subdomains/emails for a given domain using SSL/TLS certificate dataset on Censys.
A Python-based tool for subdomain enumeration and analysis
A tool for performing subdomain enumeration using Censys API
A subdomain enumeration tool for bug hunting and pentesting
A high-performance DNS stub resolver for bulk lookups and reconnaissance (subdomain enumeration)
A hosted web application security testing tool that enables security researchers to register, activate their accounts, and scan web applications for vulnerabilities.
SecurityVulnerability.io simplifies the process of collecting, enriching, and presenting vulnerability information for both human and machine consumption.
A powerful enumeration tool for discovering assets and subdomains.
A free and open-source OSINT framework for gathering and analyzing data from various sources
A vulnerability assessment and management tool that uses patented technology to accurately identify vulnerabilities and prioritize them by risk.
A tool that automatically audits website security by crawling an entire website and identifying vulnerabilities
A tool for automated security scanning of web applications and manual penetration testing.
A Ruby-based tool that enumerates all public IPv4 and IPv6 addresses associated with an AWS account across multiple services including EC2, CloudFront, ELB, RDS, and others.
A black-box reconnaissance tool that discovers cloud infrastructure, files, and applications across major cloud providers for security testing purposes.
Terrascan is a static code analyzer that scans Infrastructure as Code for security misconfigurations and compliance violations across multiple cloud platforms and container environments.
636 tools across 6 specializations · 208 free, 428 commercial
External Attack Surface Management
External Attack Surface Management (EASM) tools for discovering and securing internet-facing assets, domains, and exposed services.
Cyber Asset Attack Surface Management
Cyber Asset Attack Surface Management (CAASM) platforms for comprehensive cyber asset inventory, attack surface visibility, and security posture management across IT environments.
Exposure Management
Exposure management and CTEM solutions for continuously identifying, prioritizing, and remediating security exposures across the entire attack surface.
Common questions about Exposure & Vulnerability Management tools, selection guides, pricing, and comparisons.
It is the work of finding every asset you own, checking each one for weaknesses, and fixing the ones that matter most. It starts with discovery: internet-facing systems, cloud resources, and apps nobody told security about. Then scanners and assessment tools look for known flaws and bad settings. Last, exposure management ranks the results by how easy they are to exploit and how much damage they could do.
EASM looks at you from the outside, the way an attacker on the internet would. CAASM builds a full inventory from the inside by reading data from tools you already run. Vulnerability assessment and security scanning test known assets for flaws. Exposure management sits on top. It joins the findings and ranks them, so the team fixes the few that are truly reachable. Many teams start with one and add the others as the program grows.
CTEM stands for continuous threat exposure management. It is a program, not a single product. It runs in a loop: set the scope, find assets and weaknesses, rank them, check which ones an attacker could really use, and get them fixed. Exposure management platforms support that loop. The checking step often uses Offensive Security tools, such as breach and attack simulation.
No. This category finds and ranks weaknesses in your own assets. Penetration testing, red teaming, and breach and attack simulation sit in Offensive Security. They prove whether a weakness can really be exploited. Digital risk protection and brand protection sit in Threat Intelligence. They watch attackers and threats outside your company. The three work together, but each answers a different question.
Open-source scanners and recon tools are strong for point-in-time checks and small estates. They fall short on continuous discovery, asset ownership tracking, ranking at scale, and ticketing. Many teams use open-source tools to check or add to a commercial platform. The honest test is whether your team is doing by hand what a platform would do for it.