CentOS Errata and Security Advisory 2009:0474 Moderate https://rhn.redhat.com/errata/RHSA-2009-0474.html
The following updated files have been uploaded and are currently syncing to the mirrors:
x86_64: acpid-1.0.3-2.el4_7.1.x86_64.rpm
src: acpid-1.0.3-2.el4_7.1.src.rpm