Enhancing Vulnerability Management with CISA's Playbook and DomainTools Data

This article summarizes CISA’s Vulnerability Management Playbook—emphasizing prioritization of actively exploited vulnerabilities and the phases of identification, evaluation, remediation, and reporting/collaboration—and explains how DomainTools data (WHOIS, passive DNS, domain/IP intelligence) can enhance threat source identification, CVE correlation, early warning, and investigations. It also recommends expanding the security stack with threat intelligence feeds, SIEM, vulnerability scanning, patch management, and incident response platforms to build a proactive vulnerability management program.