diff --git a/tools/source/generic/poly2.cxx b/tools/source/generic/poly2.cxx
index 0262a36a0af6..cde160139e09 100644
--- a/tools/source/generic/poly2.cxx
+++ b/tools/source/generic/poly2.cxx
@@ -154,7 +154,7 @@ void PolyPolygon::Insert( const Polygon& rPoly, sal_uInt16 nPos )
 
 void PolyPolygon::Remove( sal_uInt16 nPos )
 {
-    DBG_ASSERT( nPos < Count(), "PolyPolygon::Remove(): nPos >= nSize" );
+    assert(nPos < Count() && "PolyPolygon::Remove(): nPos >= nSize");
 
     if ( mpImplPolyPolygon->mnRefCount > 1 )
     {
@@ -171,7 +171,7 @@ void PolyPolygon::Remove( sal_uInt16 nPos )
 
 void PolyPolygon::Replace( const Polygon& rPoly, sal_uInt16 nPos )
 {
-    DBG_ASSERT( nPos < Count(), "PolyPolygon::Replace(): nPos >= nSize" );
+    assert(nPos < Count() && "PolyPolygon::Replace(): nPos >= nSize");
 
     if ( mpImplPolyPolygon->mnRefCount > 1 )
     {
@@ -185,7 +185,7 @@ void PolyPolygon::Replace( const Polygon& rPoly, sal_uInt16 nPos )
 
 const Polygon& PolyPolygon::GetObject( sal_uInt16 nPos ) const
 {
-    DBG_ASSERT( nPos < Count(), "PolyPolygon::GetObject(): nPos >= nSize" );
+    assert(nPos < Count() && "PolyPolygon::GetObject(): nPos >= nSize");
 
     return *(mpImplPolyPolygon->mpPolyAry[nPos]);
 }
@@ -508,7 +508,7 @@ Rectangle PolyPolygon::GetBoundRect() const
 
 Polygon& PolyPolygon::operator[]( sal_uInt16 nPos )
 {
-    DBG_ASSERT( nPos < Count(), "PolyPolygon::[](): nPos >= nSize" );
+    assert(nPos < Count() && "PolyPolygon::[](): nPos >= nSize");
 
     if ( mpImplPolyPolygon->mnRefCount > 1 )
     {
diff --git a/vcl/source/gdi/metaact.cxx b/vcl/source/gdi/metaact.cxx
index 93dbfa6aace7..2417e0ff4de1 100644
--- a/vcl/source/gdi/metaact.cxx
+++ b/vcl/source/gdi/metaact.cxx
@@ -1077,6 +1077,12 @@ void MetaPolyPolygonAction::Read( SvStream& rIStm, ImplMetaReadData* )
             rIStm.ReadUInt16( nIndex );
             Polygon aPoly;
             aPoly.Read( rIStm );
+            if (nIndex >= maPolyPoly.Count())
+            {
+                SAL_WARN("vcl.gdi", "svm contains polygon index " << nIndex
+                         << " outside possible range " << maPolyPoly.Count());
+                continue;
+            }
             maPolyPoly.Replace( aPoly, nIndex );
         }
     }