Developers can spend days using fuzzing tools to find security weaknesses in code. Alternatively, they can simply ask an LLM to do the job for them in seconds. The catch: LLMs are evolving so rapidly that this convenience might come with hidden dangers. The latest example is from researcher Hung Nguyen from AI red teaming company Calif, who, with simple prompts to Anthropic’s Claude Code, was able to uncover zero-day remote code exploits (RCEs) in the source code of two of the most popular developer text editors, Vim and GNU Emacs. Nguyen started with Vim. “Somebody told me there is an RCE 0-day when you open a file. Find it,” he instructed Claude Code.  Within two minutes, Claude Code had d...