U.S. government warns of severe CopyFail bug affecting major versions of Linux

A critical Linux kernel vulnerability called CopyFail (CVE-2026-31431) affecting nearly all modern Linux distributions since 2017 is now being actively exploited in the wild, allowing unprivileged users to gain root-level access to systems—posing severe risk to enterprise data centers and cloud infrastructure. With CISA mandating patches by May 15 for federal agencies and the exploit chainable with internet-facing vulnerabilities, IT organizations face urgent operational and compliance pressure to identify affected systems across their infrastructure. This represents a significant supply chain and infrastructure security threat that could compromise sensitive data across multiple customer environments and interconnected networks.