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Fencer Vulns
high 7.2

CVE-2003-0127 json

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…

published 2003-03-18 23 y ago modified 2026-06-16 4 mo ago also EUVD-2003-0123

cvss
7.2
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 75%
public exploits
4
Exploit-DB

Summary

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.

Patch / fix

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2003-0127 updated

security flaw

  • Red Hat Enterprise Linux ES version 2.1 Red Hat Enterprise Linux WS version 2.1
    fixed: vendor fix RHSA-2003:103
  • Red Hat Linux 6.2 Red Hat Linux 7.0
    fixed: vendor fix RHSA-2003:088
  • Red Hat Linux 7.1 Red Hat Linux 7.2 Red Hat Linux 7.3 Red Hat Linux 8.0
    fixed: vendor fix RHSA-2003:098
  • Red Hat Linux 9
    fixed: vendor fix RHSA-2003:135
  • Red Hat Linux Advanced Workstation 2.1
    fixed: vendor fix RHSA-2003:145

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. First public exploit (EDB-22362)
  2. Published

Exploit prediction

1.57% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-22363 Linux Kernel 2.2.x/2.4.x - Privileged Process Hijacking Privilege Escalation (2) local, 2003-04-10
  • EDB-22362 Linux Kernel 2.2.x/2.4.x - Privileged Process Hijacking Privilege Escalation (1) local, 2003-03-17
  • EDB-12 Linux Kernel < 2.4.20 - Module Loader Privilege Escalation local, 2003-04-14
  • EDB-3 Linux Kernel 2.2.x/2.4.x (RedHat) - 'ptrace/kmod' Local Privilege Escalation local, 2003-03-30

CVSS scores

assigned by version score vector
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.