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Anthropic’s Mythos Raises Questions About AI-Driven Vulnerability Discovery

· 2:51:16 · Watch on YouTube ↗

Summary

Security Now examines Anthropic’s claims about Claude Mythos preview finding and exploiting software flaws, including a wolfSSL certificate-verification issue, and discusses the challenges of patching widely deployed systems.

Key points

  • Anthropic says Mythos preview found thousands of previously unknown vulnerabilities and developed many exploits autonomously; most findings remained undisclosed and unpatched when it published its report.
  • CVE-2026-5194 affects wolfSSL signature verification and could allow acceptance of a forged digital identity. The show credits Anthropic researcher Nicholas Carlini with reporting it and attributes its discovery to Mythos.
  • The hosts caution that embedded devices using wolfSSL may be difficult to update, even when fixes are available.
  • Anthropic says it reported patched findings in OpenBSD, FFmpeg and the Linux kernel, including a local privilege-escalation chain.
  • Anthropic reports that Mythos produced an unauthenticated remote code execution exploit against FreeBSD’s NFS server using a return-oriented programming chain.
  • Project Glasswing gives participating organizations access to Mythos preview for defensive work. The hosts discuss the risk that similar capabilities could eventually become available to attackers.

Article Details

Topics
  • [14:19] Anthropic’s vulnerability-discovery claims and coordinated disclosure
  • [19:24] wolfSSL certificate-verification vulnerability and embedded-device patching
  • [53:42] Project Glasswing and restricted defensive access to Mythos
  • [01:02:46] Reported findings in OpenBSD, FFmpeg and the Linux kernel
  • [01:10:18] Anthropic’s exploit-development results and security implications

Vendors

AnthropicAnthropic launched Project Glasswing to provide participating organizations with Mythos preview for defensive security work.

Products

FreeBSD[01:16:36] Anthropic says Mythos developed an unauthenticated remote code execution exploit against its NFS server.LinuxAnthropic reports that Mythos chained kernel vulnerabilities to escalate local user privileges to full machine control.Mozilla FirefoxAnthropic compared its models’ ability to exploit previously found JavaScript-engine flaws that had been patched in Firefox 148.OpenBSDAnthropic says Mythos found a now-patched, 27-year-old flaw that could allow an attacker to crash a machine remotely.

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