diff --git a/test/fuzztest/pttypesexceptiondetailscreate_fuzzer/pttypesexceptiondetailscreate_fuzzer.cpp b/test/fuzztest/pttypesexceptiondetailscreate_fuzzer/pttypesexceptiondetailscreate_fuzzer.cpp
index 7996ae3d266fa81d28769600f2e7ba13bd8c01c4..1732fa117d1440d3ed00a23b540ceae723950fd6 100644
--- a/test/fuzztest/pttypesexceptiondetailscreate_fuzzer/pttypesexceptiondetailscreate_fuzzer.cpp
+++ b/test/fuzztest/pttypesexceptiondetailscreate_fuzzer/pttypesexceptiondetailscreate_fuzzer.cpp
@@ -30,7 +30,10 @@ namespace OHOS {
         if (size <= 0 || data == NULL) {
             return;
         }
-        cJSON* cjson = cJSON_ParseWithLength((const char*)data, size);
+        // if data: "{\"\":1,"
+        // cJSON_ParseWithLength will heap-buffer-overflow
+        // https://github.com/DaveGamble/cJSON/issues/804
+        cJSON* cjson = NULL;
         if (cjson != NULL) {
             PtJson pjson(cjson);
             auto details = ExceptionDetails::Create(pjson);