
🎯Basically, Anthropic's new AI tool finds software flaws faster, making it crucial to know which ones to fix first.
What Happened
Anthropic's new AI tool, Mythos, is changing the landscape of vulnerability management. It enables rapid detection of software flaws, complicating the already challenging task of prioritizing which vulnerabilities need immediate attention. As the speed of vulnerability discovery increases, defenders must quickly identify which flaws pose the greatest risk.
The Role of EPSS
To tackle this challenge, Anthropic recommends using the Exploit Prediction Scoring System (EPSS). This model, developed by the team at Empirical Security, helps organizations triage vulnerabilities by predicting which ones are likely to be exploited within the next 30 days. This proactive approach allows security teams to focus on the most critical vulnerabilities first, particularly those listed in the CISA’s Known Exploited Vulnerabilities (KEV) catalog.
The Challenge of Volume
The vulnerability ecosystem is already under strain, with a significant increase in reported vulnerabilities. The National Institute of Standards and Technology (NIST) has had to limit its focus on certain CVEs due to this overwhelming volume. EPSS, being machine-driven, can assess all CVEs and provide daily updates, making it a crucial tool in this environment.
Security Leaders' Perspectives
Security experts are increasingly integrating EPSS scores into their products. Over 120 security vendors, including major names like CrowdStrike and Cisco, have adopted EPSS. This widespread adoption signals a shift in how vulnerabilities are evaluated and managed. However, some security leaders express concerns about the applicability of EPSS in critical infrastructure sectors, where immediate patching can be challenging due to legacy systems.
Rethinking Vulnerability Management
While EPSS offers a promising method for prioritizing vulnerabilities, some industry experts argue that both EPSS and the Common Vulnerability Scoring System (CVSS) are outdated in the context of rapid AI-driven vulnerability discovery. They advocate for a shift towards real-time defense strategies that can keep pace with the speed of new vulnerabilities being discovered.
Future Implications
As Mythos and similar systems reveal millions of vulnerabilities that may not fit traditional CVE definitions, organizations will need to adapt their vulnerability management strategies. This may involve developing localized predictive models tailored to specific applications and environments, ensuring a comprehensive approach to exposure management. The future of vulnerability management lies in leveraging AI to navigate the complexities of an ever-evolving threat landscape.
🔒 Pro insight: The integration of EPSS into vulnerability management reflects a critical evolution in prioritizing threats amidst accelerated discovery rates.




