Mythos AI Uncovers Thousands of Zero-Day Vulnerabilities Across Major OSs

Severity: High (Score: 66.6)

Sources: Bitdefender, Eu.36Kr

Summary

Anthropic's Mythos AI has autonomously discovered thousands of zero-day vulnerabilities across various operating systems, including Windows, Linux, macOS, FreeBSD, and OpenBSD. The vulnerabilities include critical flaws such as CVE-2026-4747, which allows unauthenticated remote code execution on FreeBSD systems. Mythos demonstrated its capabilities by successfully exploiting vulnerabilities in the Firefox JS engine 181 times, significantly outperforming traditional tools. The AI's ability to identify and exploit these vulnerabilities poses a severe risk, as many remain unpatched. Mythos's findings indicate that less than 1% of its discovered vulnerabilities have been addressed. The implications of these findings highlight the inadequacy of current security measures and the urgent need for a reevaluation of trust in software systems. As of now, the scope of the vulnerabilities remains largely unaddressed, leaving systems vulnerable to potential exploitation. Key Points: • Mythos AI has found thousands of zero-day vulnerabilities across major operating systems. • CVE-2026-4747 allows remote code execution on FreeBSD, posing a critical risk. • Less than 1% of vulnerabilities discovered by Mythos have been patched.

Key Entities

• DDoS (attack_type)
• Supply Chain Attack (attack_type)
• Zero-day Exploit (attack_type)
• CVE-2026-4747 (cve)
• T1195 - Supply Chain Compromise (mitre_attack)
• Chrome (tool)
• Ffmpeg (tool)
• Firefox (platform)
• FreeBSD (platform)
• Linux (platform)
• MacOS (platform)
• NFS (platform)