Agents have been known to cancel and immediately re-list a property to generate new activity. By doing this, the DOM (Days on Market) indicator is reset to zero; however the CDOM is not (unless there has been a 30 day break in the lising period on the MLS.
CDOM means Contingent Days On Market. Since this is an REO, the bank is the seller. The banks typically take a much longer time to respond to everything, which is why the days on market are so long. The CDOM also includes the days on market prior to getting into contract.