diff --git a/tests/subsys/cpp/libcxx/prj.conf b/tests/subsys/cpp/libcxx/prj.conf
index b07b5f571b1..5bb9a62c4a0 100644
--- a/tests/subsys/cpp/libcxx/prj.conf
+++ b/tests/subsys/cpp/libcxx/prj.conf
@@ -3,4 +3,4 @@ CONFIG_CPLUSPLUS=y
 CONFIG_LIB_CPLUSPLUS=y
 CONFIG_STD_CPP17=y
 CONFIG_ZTEST=y
-CONFIG_ZTEST_STACKSIZE=2048
+CONFIG_ZTEST_STACKSIZE=4096
diff --git a/tests/subsys/cpp/libcxx/testcase.yaml b/tests/subsys/cpp/libcxx/testcase.yaml
index 5b5e8744820..4336a79169d 100644
--- a/tests/subsys/cpp/libcxx/testcase.yaml
+++ b/tests/subsys/cpp/libcxx/testcase.yaml
@@ -10,10 +10,10 @@ tests:
     tags: cpp
   cpp.libcxx.exceptions:
     # FIXME: change when issue is resolved #32448
-    platform_allow: mps2_an385
+    platform_allow: mps2_an385 qemu_arc_em qemu_arc_hs qemu_cortex_m0 qemu_cortex_m3 qemu_cortex_r5 qemu_riscv32 qemu_x86 qemu_xtensa
     toolchain_exclude: xcc
     min_flash: 54
     tags: cpp
-    timeout: 5
+    timeout: 30
     extra_configs:
         - CONFIG_EXCEPTIONS=y