Modeling C++ Object Corruption

We encountered several crash dumps with the code running on heap with the following similar stack traces:

1: kd> k
  *** Stack trace for last set context - .thread/.cxr resets it
ChildEBP RetAddr  Args to Child
WARNING: Frame IP not in any known module. Following frames may be wrong.
02cdfbfc 0056511a 0x634648
02cdfc24 005651a1 ModuleA!ClassA::×ClassA+0x5a
02cdfc30 00562563 ModuleA!ClassA::'scalar deleting destructor'+0x11
[...]
02cdffec 00000000 kernel32!BaseThreadStart+0x37