CVE-2003-0127 Privilege escalation in n/a

What is CVE-2003-0127?

CVE-2003-0127 is a high-severity vulnerability in Linux kernel, published on 18 Mar 2003. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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.

Which versions are affected by CVE-2003-0127?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2003-0127?

Upgrade to a fixed version.

Is CVE-2003-0127 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2003-0127 exists.

Public exploit code: 4 Exploit-DB entries and 1 proofs of concept on GitHub.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DSA-270, DSA-276, GHSA-jhjp-mfjv-rvhx.