CVE-2000-1121: IBM Aix

High severity, CVSS 7.2. EPSS: 1% chance of exploitation in the next 30 days.

Buffer overflow in enq command in IBM AIX 4.3.x and earlier may allow local users to execute arbitrary commands via a long -M argument.

Affected products

• IBM Aix: version 4.2 only; version 4.2.1 only; version 4.3 only; version 4.3.1 only; version 4.3.2 only; version 4.3.3 only

Published 2001-01-09. Last modified 2026-06-16.