diff --git a/services/distributedhardwarefwkservice/test/fuzztest/accessmanager_fuzzer/BUILD.gn b/services/distributedhardwarefwkservice/test/fuzztest/accessmanager_fuzzer/BUILD.gn
index abe2abd4e52446cd46a0efb825ecc59d9b0a9788..252f6a1d3fabb06872d2d102b3e591c1411b262d 100644
--- a/services/distributedhardwarefwkservice/test/fuzztest/accessmanager_fuzzer/BUILD.gn
+++ b/services/distributedhardwarefwkservice/test/fuzztest/accessmanager_fuzzer/BUILD.gn
@@ -50,7 +50,10 @@ ohos_fuzztest("AccessmanagerFuzzTest") {
     "LOG_DOMAIN=0xD004100",
   ]
 
-  external_deps = [ "init:libbegetutil" ]
+  external_deps = [
+    "c_utils:utils",
+    "init:libbegetutil",
+  ]
 }
 
 ###############################################################################
diff --git a/services/distributedhardwarefwkservice/test/fuzztest/accessmanager_fuzzer/accessmanager_fuzzer.cpp b/services/distributedhardwarefwkservice/test/fuzztest/accessmanager_fuzzer/accessmanager_fuzzer.cpp
index 1e7cf3f30e3799aff6cb19f7ff9a2324ffff426f..9cb74959713d8e88ef5eff28ee92f59113249175 100644
--- a/services/distributedhardwarefwkservice/test/fuzztest/accessmanager_fuzzer/accessmanager_fuzzer.cpp
+++ b/services/distributedhardwarefwkservice/test/fuzztest/accessmanager_fuzzer/accessmanager_fuzzer.cpp
@@ -19,6 +19,7 @@
 #include <chrono>
 #include <cstddef>
 #include <cstdint>
+#include <securec.h>
 #include <string>
 #include <unistd.h>
 
@@ -39,7 +40,11 @@ void AccessManagerFuzzTest(const uint8_t* data, size_t size)
     }
 
     AccessManager::GetInstance()->Init();
-    const DmDeviceInfo deviceInfo = *(reinterpret_cast<const DmDeviceInfo *>(data));
+    DmDeviceInfo deviceInfo;
+    int32_t ret = memcpy_s(deviceInfo.deviceId, DM_MAX_DEVICE_ID_LEN, (reinterpret_cast<const char *>(data)), size);
+    if (ret != EOK) {
+        return;
+    }
     AccessManager::GetInstance()->OnDeviceReady(deviceInfo);
 
     usleep(SLEEP_TIME_US);