21 zero-day issues were found in FFmpeg Depthfirst's autonomous security agent discovered 21 zero-day vulnerabilities in FFmpeg, including several that had been latent for 15 to 20 years, after intensive analysis by Google and Anthropic. The agent produced concrete, reproducible proof of concept inputs to confirm its findings. depthfirst’s production autonomous security agent discovered 21 zero-day vulnerabilities in FFmpeg, after intensive security analysis by Google and Anthropic. Moving beyond theoretical analysis, their agent produced concrete, reproducible proof of concept inputs to confirm its findings. Several of the findings had been sitting latent for 15 to 20 years. depthfirst explored the exploitability of the …