Index: /trunk/src/VBox/Main/src-client/MouseImpl.cpp
===================================================================
--- /trunk/src/VBox/Main/src-client/MouseImpl.cpp	(revision 59857)
+++ /trunk/src/VBox/Main/src-client/MouseImpl.cpp	(revision 59858)
@@ -174,5 +174,6 @@
 {
     aShape.resize(m.shape.size());
-    memcpy(&aShape.front(), &m.shape.front(), aShape.size());
+    if (m.shape.size())
+        memcpy(&aShape.front(), &m.shape.front(), aShape.size());
     return S_OK;
 }