diff --git a/hplip/prnt/hpcups/HPCupsFilter.cpp b/hplip/prnt/hpcups/HPCupsFilter.cpp
index 5fbcff435..5f5afedd7 100644
--- a/hplip/prnt/hpcups/HPCupsFilter.cpp
+++ b/hplip/prnt/hpcups/HPCupsFilter.cpp
@@ -652,7 +652,7 @@ int HPCupsFilter::processRasterData(cups_raster_t *cups_raster)
     char hpPreProcessedRasterFile[MAX_FILE_PATH_LEN]; //temp file needed to store raster data with swaped pages.
 
 
-    sprintf(hpPreProcessedRasterFile, "%s/hp_%s_cups_SwapedPagesXXXXXX",CUPS_TMP_DIR, m_JA.user_name);
+    snprintf(hpPreProcessedRasterFile, sizeof (hpPreProcessedRasterFile), "%s/hp_%s_cups_SwapedPagesXXXXXX",CUPS_TMP_DIR, m_JA.user_name);
     #ifndef DISABLE_IMAGEPROCESSOR 
 	    image_processor_t* imageProcessor=NULL;
 	    IMAGE_PROCESSOR_ERROR result;
diff --git a/hplip/prnt/hpcups/SystemServices.cpp b/hplip/prnt/hpcups/SystemServices.cpp
index f22783733..318e5391b 100644
--- a/hplip/prnt/hpcups/SystemServices.cpp
+++ b/hplip/prnt/hpcups/SystemServices.cpp
@@ -38,7 +38,7 @@ SystemServices::SystemServices(int iLogLevel, int job_id, char* user_name) : m_i
     if (iLogLevel & SAVE_OUT_FILE)
     {
         char    fname[MAX_FILE_PATH_LEN];
-        sprintf(fname, "%s/hpcups_%s_out_job%d_XXXXXX",CUPS_TMP_DIR, user_name, job_id);
+        snprintf(fname, sizeof(fname), "%s/hpcups_%s_out_job%d_XXXXXX",CUPS_TMP_DIR, user_name, job_id);
         createTempFile(fname, &m_fp);
         if (m_fp)
         {