diff --git a/common/native/include/plugin_utils/message_parcel_utils.h b/common/native/include/plugin_utils/message_parcel_utils.h
index ef9d2eed07cea5c880a92237c3739339b8467c97..8c1f608a8fe23634f2c9d8cde3d5c2c5496db79e 100644
--- a/common/native/include/plugin_utils/message_parcel_utils.h
+++ b/common/native/include/plugin_utils/message_parcel_utils.h
@@ -27,7 +27,7 @@ namespace OHOS {
 namespace EDM {
 class MessageParcelUtils {
 public:
-    static void WriteWifiDeviceConfig(const Wifi::WifiDeviceConfig &config, MessageParcel &data);
+    static void WriteWifiDeviceConfig(Wifi::WifiDeviceConfig &config, MessageParcel &data);
     static void WriteInstallParam(const AppExecFwk::InstallParam &installParam, MessageParcel &data);
     static void WriteIpAddress(MessageParcel &data, const Wifi::WifiIpAddress &address);
     static void ReadWifiDeviceConfig(MessageParcel &data, Wifi::WifiDeviceConfig &config);
diff --git a/common/native/src/plugin_utils/message_parcel_utils.cpp b/common/native/src/plugin_utils/message_parcel_utils.cpp
index 7e3f2cbd78fc747d36be363ce08d2a677ce5dcd3..c83501a0eb3ae8fd82f9ea59e68b207fe20dcac4 100644
--- a/common/native/src/plugin_utils/message_parcel_utils.cpp
+++ b/common/native/src/plugin_utils/message_parcel_utils.cpp
@@ -20,7 +20,7 @@
 
 namespace OHOS {
 namespace EDM {
-void MessageParcelUtils::WriteWifiDeviceConfig(const Wifi::WifiDeviceConfig &config, MessageParcel &data)
+void MessageParcelUtils::WriteWifiDeviceConfig(Wifi::WifiDeviceConfig &config, MessageParcel &data)
 {
     data.WriteInt32(config.networkId);
     data.WriteInt32(config.status);
@@ -55,7 +55,9 @@ void MessageParcelUtils::WriteWifiDeviceConfig(const Wifi::WifiDeviceConfig &con
     data.WriteString(config.wifiEapConfig.clientCert);
     data.WriteString(config.wifiEapConfig.privateKey);
     data.WriteUInt8Vector(config.wifiEapConfig.certEntry);
-    data.WriteString(std::string(config.wifiEapConfig.certPassword));
+    data.WriteCString(config.wifiEapConfig.certPassword);
+    memset_s(config.wifiEapConfig.certPassword, sizeof(config.wifiEapConfig.certPassword), 0,
+        sizeof(config.wifiEapConfig.certPassword));
     data.WriteInt32(static_cast<int32_t>(config.wifiEapConfig.phase2Method));
     data.WriteInt32(static_cast<int32_t>(config.wifiProxyconfig.configureMethod));
     data.WriteString(config.wifiProxyconfig.autoProxyConfig.pacWebAddress);
@@ -76,7 +78,7 @@ void MessageParcelUtils::WriteIpAddress(MessageParcel &data, const Wifi::WifiIpA
     data.WriteInt32(address.family);
     data.WriteUint32(address.addressIpv4);
     size_t size = address.addressIpv6.size();
-    data.WriteInt32(size);
+    data.WriteUint32(size);
     for (size_t i = 0; i < size; i++) {
         data.WriteUint8(address.addressIpv6[i]);
     }
@@ -117,7 +119,7 @@ void MessageParcelUtils::ReadWifiDeviceConfig(MessageParcel &data, Wifi::WifiDev
     config.wifiEapConfig.clientCert = data.ReadString();
     config.wifiEapConfig.privateKey = data.ReadString();
     data.ReadUInt8Vector(&config.wifiEapConfig.certEntry);
-    strncpy_s(config.wifiEapConfig.certPassword, sizeof(config.wifiEapConfig.certPassword), data.ReadString().c_str(),
+    strncpy_s(config.wifiEapConfig.certPassword, sizeof(config.wifiEapConfig.certPassword), data.ReadCString(),
         sizeof(config.wifiEapConfig.certPassword) - 1);
     ProcessPhase2Method(data.ReadInt32(), config.wifiEapConfig);
     ProcessConfigureProxyMethod(data.ReadInt32(), config.wifiProxyconfig);
@@ -202,12 +204,12 @@ void MessageParcelUtils::ReadIpAddress(MessageParcel &data, Wifi::WifiIpAddress
     constexpr int MAX_LIMIT_SIZE = 1024;
     address.family = data.ReadInt32();
     address.addressIpv4 = data.ReadUint32();
-    int size = data.ReadInt32();
+    size_t size = data.ReadUint32();
     if (size > MAX_LIMIT_SIZE) {
         EDMLOGE("Read ip address parameter error: %{public}d", size);
         return;
     }
-    for (int i = 0; i < size; i++) {
+    for (size_t i = 0; i < size; i++) {
         address.addressIpv6.push_back(data.ReadUint8());
     }
 }
diff --git a/interfaces/inner_api/wifi_manager/include/wifi_manager_proxy.h b/interfaces/inner_api/wifi_manager/include/wifi_manager_proxy.h
index e8ddec616604c732db1b300db3f3dff2bf1a7d33..0ff5ec6a511ea1eae7faf438a3a37d7ab624b36c 100644
--- a/interfaces/inner_api/wifi_manager/include/wifi_manager_proxy.h
+++ b/interfaces/inner_api/wifi_manager/include/wifi_manager_proxy.h
@@ -27,7 +27,7 @@ public:
     ~WifiManagerProxy();
     static std::shared_ptr<WifiManagerProxy> GetWifiManagerProxy();
     int32_t IsWifiActive(const AppExecFwk::ElementName &admin, bool &result);
-    int32_t SetWifiProfile(const AppExecFwk::ElementName &admin, const Wifi::WifiDeviceConfig &config);
+    int32_t SetWifiProfile(const AppExecFwk::ElementName &admin, Wifi::WifiDeviceConfig &config);
 private:
     static std::shared_ptr<WifiManagerProxy> instance_;
     static std::mutex mutexLock_;
diff --git a/interfaces/inner_api/wifi_manager/src/wifi_manager_proxy.cpp b/interfaces/inner_api/wifi_manager/src/wifi_manager_proxy.cpp
index 1423fa649662d42990f0c9b74a96333ec0936b85..c77229b47a0a462a0d9bff57859f80ff35bbf8da 100644
--- a/interfaces/inner_api/wifi_manager/src/wifi_manager_proxy.cpp
+++ b/interfaces/inner_api/wifi_manager/src/wifi_manager_proxy.cpp
@@ -66,7 +66,7 @@ int32_t WifiManagerProxy::IsWifiActive(const AppExecFwk::ElementName &admin, boo
     return ERR_OK;
 }
 
-int32_t WifiManagerProxy::SetWifiProfile(const AppExecFwk::ElementName &admin, const Wifi::WifiDeviceConfig &config)
+int32_t WifiManagerProxy::SetWifiProfile(const AppExecFwk::ElementName &admin, Wifi::WifiDeviceConfig &config)
 {
     EDMLOGD("WifiManagerProxy::SetWifiProfile");
     auto proxy = EnterpriseDeviceMgrProxy::GetInstance();