The remote host is missing an update to apcupsd announced via advisory DSA 277-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%20277-1

The controlling and management daemon apcupsd for APC's Unbreakable Power Supplies is vulnerable to several buffer overflows and format string attacks. These bugs can be exploited remotely by an attacker to gain root access to the machine apcupsd is running on. For the stable distribution (woody) this problem has been fixed in version 3.8.5-1.1.1. For the old stable distribution (potato) this problem does not seem to exist. For the unstable distribution (sid) this problem has been fixed in version 3.8.5-1.2. We recommend that you upgrade your apcupsd packages immediately.