Published on July 23, 2026 at 4:01 p.m. Updated on July 24, 2026 at 4:33 p.m. Comment 1 𝕏 Print © Anthropic A new critical vulnerability named “RefluXFS” has just been discovered at the heart of the Linux kernel. Uncovered by Claude Mythos, it has made more than 16 million computers vulnerable since it first appeared in 2017. It allows an ordinary user to take full control of a system. A patch has been deployed. A new vulnerability has been discovered in t