CVE-2005-4271: IBM Aix

High severity, CVSS 7.2. EPSS: 0.5% chance of exploitation in the next 30 days.

Buffer overflow in the malloc debug system in IBM AIX 5.3 allows local users to execute arbitrary code.

Affected products

• IBM Aix: version 5.3 only; version 5.3_l only

Published 2005-12-15. Last modified 2026-06-16.