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 Linux privilege escalation auditing tool that identifies potential kernel vulnerabilities and suggests applicable exploits based on system analysis.
OneFuzz is a self-hosted Fuzzing-As-A-Service platform developed by Microsoft that enables continuous developer-driven security testing through automated fuzzing capabilities.
Mana Security is a macOS-focused vulnerability management tool that continuously monitors 100+ applications for security vulnerabilities and tracks patching performance against community benchmarks.
A command-line tool that scans websites to detect publicly known security vulnerabilities in frontend JavaScript libraries using Snyk's vulnerability database.
tfsec is being replaced by Trivy, a more comprehensive open-source security solution
A full-featured reconnaissance framework for web-based reconnaissance with a modular design.
ssh-audit is a Python-based tool for auditing SSH server and client configurations to identify security weaknesses and ensure compliance with best practices.
A network recon framework including tools for passive and active recon
A multi-threaded, feedback-driven evolutionary fuzzer that uses low-level process monitoring to discover security vulnerabilities in software applications.
A fuzzing framework for Android that creates corrupt media files to identify potential vulnerabilities
Vulnerability scanner for Linux/FreeBSD, written in Go, agent-less, informs users of vulnerabilities related to the system and affected servers.
A standalone Python script that audits system configurations against CIS Hardening Benchmarks to assess compliance readiness without requiring installation or dependencies.
testssl.sh is a free command line tool for checking server's TLS/SSL configurations with clear and machine-readable output.
Python utility for testing the existence of domain names under different TLDs to find malicious subdomains.
A collection of Ansible roles for hardening various systems and services
A runtime threat management and attack path enumeration tool for cloud-native environments
FestIn discovers open S3 buckets associated with a domain using crawling and DNS reconnaissance techniques.
An easy-to-use and lightweight API wrapper for Censys APIs with support for Python 3.8+.
A multi-threading tool for sniffing HTTP header records with support for offline and live sniffing, TCP flow statistics, and JSON output.
CryptoLyzer is a cryptographic protocol analyzer that examines TLS, SSL, SSH, and DNSSEC server implementations with fingerprinting capabilities and multiple output formats.
A Go-based crash analysis tool that processes and reproduces crash files from fuzzing tools like AFL with multiple debugging engines and output formats.
Script to find exploits for vulnerable software packages on Linux systems using an exploit database.
CVE Ape is an open source tool that creates a local CVE database from the National Vulnerability Database for offline vulnerability searching by package name, vendor, or OS components.
A tool for SSH server auditing with comprehensive analysis capabilities.
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.