The kernel module loader in Linux kernel 2.2.x before 2.2.25, and 2.4.x before 2.4.21, allows local users to gain root privileges by using ptrace to attach to a child process that is spawned by the kernel.
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The kernel module loader in Linux kernel 2.2.x before 2.2.25, and 2.4.x before 2.4.21, allows local users to gain root privileges by using ptrace to attach to a child process that is spawned by the kernel.
March 31, 2003
April 16, 2026
Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.
Working exploit code is in the public domain (4 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
Linux Kernel < 2.4.20 - Module Loader Privilege Escalation
Open source ↗Linux Kernel 2.2.x/2.4.x - Privileged Process Hijacking Privilege Escalation (2)
Open source ↗Linux Kernel 2.2.x/2.4.x (RedHat) - 'ptrace/kmod' Local Privilege Escalation
Open source ↗Linux Kernel 2.2.x/2.4.x - Privileged Process Hijacking Privilege Escalation (1)
Open source ↗See which npm, PyPI, Go, and Maven packages are affected by CVE-2003-0127
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