diff --git a/filter/source/graphicfilter/ipict/ipict.cxx b/filter/source/graphicfilter/ipict/ipict.cxx
index bbd59c055d34..fe9475d36170 100644
--- a/filter/source/graphicfilter/ipict/ipict.cxx
+++ b/filter/source/graphicfilter/ipict/ipict.cxx
@@ -1078,6 +1078,9 @@ sal_uInt64 PictReader::ReadPixMapEtc( BitmapEx &rBitmap, bool bBaseAddr, bool bC
 
                 pBitmap.reset(new vcl::bitmap::RawBitmap( Size(nWidth, nHeight), 24 ));
 
+                // cid#1458434 to sanitize Untrusted loop bound
+                nWidth = pBitmap->Width();
+
                 size_t nByteWidth = static_cast<size_t>(nWidth) * nCmpCount;
                 std::vector<sal_uInt8> aScanline(nByteWidth);
                 for (sal_uInt16 ny = 0; ny < nHeight; ++ny)