DirtyClone/DirtyFrag CVE-2026-43503 Exploit Compilation and Execution on Linux

Ibrahim Saud@tektrix

•updated Jun 26, 2026•4•0•26

This rule detects command-line activity and process execution associated with the exploitation of various Linux kernel vulnerabilities, including CVE-2026-43503, CVE-2026-46300, CVE-2026-43284, CVE-2026-31431, and CVE-2026-43500. It monitors for the compilation and execution of exploit code, manipulation of kernel modules via modprobe for specific network protocols (esp4, esp6, rxrpc), configuration changes to network namespaces (xfrm, unshare), and the presence of known exploit filenames like DirtyClone or DirtyFrag.