diff --git a/src/unit-test-coverage/portable/src/coveragetest-bsd-sockets.c b/src/unit-test-coverage/portable/src/coveragetest-bsd-sockets.c
index 9322fa2bc..e3f2ac551 100644
--- a/src/unit-test-coverage/portable/src/coveragetest-bsd-sockets.c
+++ b/src/unit-test-coverage/portable/src/coveragetest-bsd-sockets.c
@@ -316,10 +316,10 @@ void Test_OS_SocketRecvFrom_Impl(void)
 
 void Test_OS_SocketSendTo_Impl(void)
 {
-    OS_object_token_t    token = {0};
-    uint8                buffer[UT_BUFFER_SIZE];
-    OS_SockAddr_t        addr = {0};
-    struct OCS_sockaddr *sa   = (struct OCS_sockaddr *)&addr.AddrData;
+    OS_object_token_t    token                  = {0};
+    const uint8          buffer[UT_BUFFER_SIZE] = {0};
+    OS_SockAddr_t        addr                   = {0};
+    struct OCS_sockaddr *sa                     = (struct OCS_sockaddr *)&addr.AddrData;
 
     /* Set up token */
     token.obj_idx = UT_INDEX_0;
@@ -393,9 +393,9 @@ void Test_OS_SocketAddrToString_Impl(void)
 
 void Test_OS_SocketAddrFromString_Impl(void)
 {
-    char                 buffer[UT_BUFFER_SIZE];
-    OS_SockAddr_t        addr = {0};
-    struct OCS_sockaddr *sa   = (struct OCS_sockaddr *)&addr.AddrData;
+    const char           buffer[UT_BUFFER_SIZE] = "UT";
+    OS_SockAddr_t        addr                   = {0};
+    struct OCS_sockaddr *sa                     = (struct OCS_sockaddr *)&addr.AddrData;
 
     /* Bad family */
     sa->sa_family = -1;
diff --git a/src/unit-test-coverage/shared/src/coveragetest-clock.c b/src/unit-test-coverage/shared/src/coveragetest-clock.c
index 244f8b2e1..2490ddbdb 100644
--- a/src/unit-test-coverage/shared/src/coveragetest-clock.c
+++ b/src/unit-test-coverage/shared/src/coveragetest-clock.c
@@ -50,9 +50,9 @@ void Test_OS_SetLocalTime(void)
      * Test Case For:
      * int32 OS_SetLocalTime(OS_time_t *time_struct)
      */
-    OS_time_t time_struct;
-    int32     expected = OS_SUCCESS;
-    int32     actual   = OS_SetLocalTime(&time_struct);
+    OS_time_t time_struct = OS_TimeAssembleFromMicroseconds(5, 12345);
+    int32     expected    = OS_SUCCESS;
+    int32     actual      = OS_SetLocalTime(&time_struct);
 
     UtAssert_True(actual == expected, "OS_SetLocalTime() (%ld) == OS_SUCCESS", (long)actual);
 
diff --git a/src/unit-test-coverage/vxworks/src/coveragetest-tasks.c b/src/unit-test-coverage/vxworks/src/coveragetest-tasks.c
index afd7c3184..c99965219 100644
--- a/src/unit-test-coverage/vxworks/src/coveragetest-tasks.c
+++ b/src/unit-test-coverage/vxworks/src/coveragetest-tasks.c
@@ -145,7 +145,7 @@ void Test_OS_TaskDetach_Impl(void)
      * Test Case For:
      * int32 OS_TaskDetach_Impl(const OS_object_token_t *token)
      */
-    OS_object_token_t token;
+    OS_object_token_t token = UT_TOKEN_0;
 
     /* no-op on VxWorks - always returns success */
     OSAPI_TEST_FUNCTION_RC(OS_TaskDetach_Impl(&token), OS_SUCCESS);
diff --git a/src/unit-tests/oscore-test/ut_oscore_task_test.c b/src/unit-tests/oscore-test/ut_oscore_task_test.c
index 3c4fb1e2e..879cd7093 100644
--- a/src/unit-tests/oscore-test/ut_oscore_task_test.c
+++ b/src/unit-tests/oscore-test/ut_oscore_task_test.c
@@ -605,7 +605,7 @@ void UT_os_task_get_info_test()
 **--------------------------------------------------------------------------------*/
 void UT_os_task_getid_by_sysdata_test()
 {
-    uint8     sysdata;
+    uint8     sysdata = 0;
     osal_id_t task_id;
 
     /*