diff --git a/README.md b/README.md
index b70683b9..e59bc804 100644
--- a/README.md
+++ b/README.md
@@ -101,7 +101,7 @@ if(FEATURE_TESTS)
   set(ENABLE_COVERAGE "ENABLE_COVERAGE")
 
   set(ENABLE_SANITIZER_ADDRESS "ENABLE_SANITIZER_ADDRESS")
-  set(ENABLE_SANITIZER_UNDEFINED_BEHAVIOR "ENABLE_SANITIZER_UNDEFINED_BEHAVIOR")
+  set(ENABLE_SANITIZER_UNDEFINED "ENABLE_SANITIZER_UNDEFINED")
 endif()
 
 # Enable doxgen for the docs
@@ -123,7 +123,7 @@ project_options(
       ${ENABLE_DOXYGEN}
       ${ENABLE_COVERAGE}
       ${ENABLE_SANITIZER_ADDRESS}
-      ${ENABLE_SANITIZER_UNDEFINED_BEHAVIOR}
+      ${ENABLE_SANITIZER_UNDEFINED}
       # ${ENABLE_SANITIZER_THREAD}
       # ${ENABLE_SANITIZER_MEMORY}
       # ENABLE_SANITIZER_POINTER_COMPARE
diff --git a/docs/src/project_options_example.md b/docs/src/project_options_example.md
index 124654eb..384d287d 100644
--- a/docs/src/project_options_example.md
+++ b/docs/src/project_options_example.md
@@ -54,7 +54,7 @@ if(FEATURE_TESTS)
   set(ENABLE_COVERAGE "ENABLE_COVERAGE")
 
   set(ENABLE_SANITIZER_ADDRESS "ENABLE_SANITIZER_ADDRESS")
-  set(ENABLE_SANITIZER_UNDEFINED_BEHAVIOR "ENABLE_SANITIZER_UNDEFINED_BEHAVIOR")
+  set(ENABLE_SANITIZER_UNDEFINED "ENABLE_SANITIZER_UNDEFINED")
 endif()
 
 # Enable doxgen for the docs
@@ -76,7 +76,7 @@ project_options(
       ${ENABLE_DOXYGEN}
       ${ENABLE_COVERAGE}
       ${ENABLE_SANITIZER_ADDRESS}
-      ${ENABLE_SANITIZER_UNDEFINED_BEHAVIOR}
+      ${ENABLE_SANITIZER_UNDEFINED}
       # ${ENABLE_SANITIZER_THREAD}
       # ${ENABLE_SANITIZER_MEMORY}
       # ENABLE_SANITIZER_POINTER_COMPARE
diff --git a/src/DynamicProjectOptions.cmake b/src/DynamicProjectOptions.cmake
index a008a541..b43d061f 100644
--- a/src/DynamicProjectOptions.cmake
+++ b/src/DynamicProjectOptions.cmake
@@ -103,27 +103,18 @@ macro(dynamic_project_options)
     )
   endif()
 
-  check_sanitizers_support(
-    ENABLE_SANITIZER_ADDRESS
-    ENABLE_SANITIZER_UNDEFINED_BEHAVIOR
-    ENABLE_SANITIZER_LEAK
-    ENABLE_SANITIZER_THREAD
-    ENABLE_SANITIZER_MEMORY
-    ENABLE_SANITIZER_POINTER_COMPARE
-    ENABLE_SANITIZER_POINTER_SUBTRACT
-  )
-
-  if(ENABLE_SANITIZER_ADDRESS)
-    set(SUPPORTS_ASAN ON)
-  else()
-    set(SUPPORTS_ASAN OFF)
-  endif()
+  # Fallback for ENABLE_SANITIZER_UNDEFINED_BEHAVIOR option
+  foreach(default_type IN ITEMS DEFAULT DEVELOPER_DEFAULT USER_DEFAULT)
+    if(DEFINED ENABLE_SANITIZER_UNDEFINED_BEHAVIOR_${default_type})
+      if(DEFINED ENABLE_SANITIZER_UNDEFINED_${default_type})
+        message(WARNING "Don't set both ENABLE_SANITIZER_UNDEFINED_BEHAVIOR_${default_type} and ENABLE_SANITIZER_UNDEFINED_${default_type}. Use ENABLE_SANITIZER_UNDEFINED_${default_type} only.")
+      else()
+        message(DEPRECATION "ENABLE_SANITIZER_UNDEFINED_BEHAVIOR_${default_type} is deprecated. Use ENABLE_SANITIZER_UNDEFINED_${default_type} instead.")
+      endif()
 
-  if(ENABLE_SANITIZER_UNDEFINED_BEHAVIOR)
-    set(SUPPORTS_UBSAN ON)
-  else()
-    set(SUPPORTS_UBSAN OFF)
-  endif()
+      set(ENABLE_SANITIZER_UNDEFINED_${default_type} ${ENABLE_SANITIZER_UNDEFINED_BEHAVIOR_${default_type}})
+    endif()
+  endforeach()
 
   # ccache, clang-tidy, cppcheck are only supported with Ninja and Makefile based generators
   # note that it is possible to use Ninja with cl, so this still allows clang-tidy on Windows
@@ -163,9 +154,9 @@ macro(dynamic_project_options)
       "0\;DISABLE_RTTI\;OFF\;OFF\;Disable RTTI (no-rtti flag)"
       "0\;ENABLE_BUILD_WITH_TIME_TRACE\;OFF\;OFF\;Generates report of where compile-time is spent"
       "0\;ENABLE_UNITY\;OFF\;OFF\;Merge C++ files into larger C++ files, can speed up compilation sometimes"
-      "0\;ENABLE_SANITIZER_ADDRESS\;OFF\;${SUPPORTS_ASAN}\;Make memory errors into hard runtime errors (windows/linux/macos)"
+      "0\;ENABLE_SANITIZER_ADDRESS\;OFF\;ON\;Make memory errors into hard runtime errors (windows/linux/macos)"
       "0\;ENABLE_SANITIZER_LEAK\;OFF\;OFF\;Make memory leaks into hard runtime errors"
-      "0\;ENABLE_SANITIZER_UNDEFINED_BEHAVIOR\;OFF\;${SUPPORTS_UBSAN}\;Make certain types (numeric mostly) of undefined behavior into runtime errors"
+      "0\;ENABLE_SANITIZER_UNDEFINED\;OFF\;ON\;Make certain types (numeric mostly) of undefined behavior into runtime errors"
       "0\;ENABLE_SANITIZER_THREAD\;OFF\;OFF\;Make thread race conditions into hard runtime errors"
       "0\;ENABLE_SANITIZER_MEMORY\;OFF\;OFF\;Make other memory errors into runtime errors"
       "0\;ENABLE_CONTROL_FLOW_PROTECTION\;OFF\;OFF\;Enable control flow protection instrumentation"
@@ -277,7 +268,7 @@ macro(dynamic_project_options)
     ${ENABLE_UNITY_VALUE}
     ${ENABLE_SANITIZER_ADDRESS_VALUE}
     ${ENABLE_SANITIZER_LEAK_VALUE}
-    ${ENABLE_SANITIZER_UNDEFINED_BEHAVIOR_VALUE}
+    ${ENABLE_SANITIZER_UNDEFINED_VALUE}
     ${ENABLE_SANITIZER_THREAD_VALUE}
     ${ENABLE_SANITIZER_MEMORY_VALUE}
     ${ENABLE_CONTROL_FLOW_PROTECTION_VALUE}
diff --git a/src/Index.cmake b/src/Index.cmake
index f4544398..a46f387a 100644
--- a/src/Index.cmake
+++ b/src/Index.cmake
@@ -82,7 +82,7 @@ include("${ProjectOptions_SRC_DIR}/Vcpkg.cmake")
    those.
 -  ``ENABLE_SANITIZER_ADDRESS``: Enable address sanitizer
 -  ``ENABLE_SANITIZER_LEAK``: Enable leak sanitizer
--  ``ENABLE_SANITIZER_UNDEFINED_BEHAVIOR``: Enable undefined behavior
+-  ``ENABLE_SANITIZER_UNDEFINED``: Enable undefined behavior
    sanitizer
 -  ``ENABLE_SANITIZER_THREAD``: Enable thread sanitizer
 -  ``ENABLE_SANITIZER_MEMORY``: Enable memory sanitizer
@@ -148,7 +148,8 @@ macro(project_options)
       ENABLE_UNITY
       ENABLE_SANITIZER_ADDRESS
       ENABLE_SANITIZER_LEAK
-      ENABLE_SANITIZER_UNDEFINED_BEHAVIOR
+      ENABLE_SANITIZER_UNDEFINED
+      ENABLE_SANITIZER_UNDEFINED_BEHAVIOR  # deprecated, ENABLE_SANITIZER_UNDEFINED
       ENABLE_SANITIZER_THREAD
       ENABLE_SANITIZER_MEMORY
       ENABLE_SANITIZER_POINTER_COMPARE
@@ -260,12 +261,23 @@ macro(project_options)
     enable_coverage(${_options_target})
   endif()
 
+  # Fallback for deprecated ENABLE_SANITIZER_UNDEFINED_BEHAVIOR
+  if(ProjectOptions_ENABLE_SANITIZER_UNDEFINED_BEHAVIOR)
+    if(ProjectOptions_ENABLE_SANITIZER_UNDEFINED)
+      message(WARNING "Don't switch on both ENABLE_SANITIZER_UNDEFINED_BEHAVIOR and ENABLE_SANITIZER_UNDEFINED. Use ENABLE_SANITIZER_UNDEFINED only.")
+    else()
+      message(DEPRECATION "ENABLE_SANITIZER_UNDEFINED_BEHAVIOR is deprecated. Use ENABLE_SANITIZER_UNDEFINED instead.")
+    endif()
+
+    set(ProjectOptions_ENABLE_SANITIZER_UNDEFINED ${ProjectOptions_ENABLE_SANITIZER_UNDEFINED_BEHAVIOR})
+  endif()
+
   # sanitizer options if supported by compiler
   enable_sanitizers(
     ${_options_target}
     ${ProjectOptions_ENABLE_SANITIZER_ADDRESS}
     ${ProjectOptions_ENABLE_SANITIZER_LEAK}
-    ${ProjectOptions_ENABLE_SANITIZER_UNDEFINED_BEHAVIOR}
+    ${ProjectOptions_ENABLE_SANITIZER_UNDEFINED}
     ${ProjectOptions_ENABLE_SANITIZER_THREAD}
     ${ProjectOptions_ENABLE_SANITIZER_MEMORY}
     ${ProjectOptions_ENABLE_SANITIZER_POINTER_COMPARE}
diff --git a/src/Sanitizers.cmake b/src/Sanitizers.cmake
index 7d516ba9..8100b6f9 100644
--- a/src/Sanitizers.cmake
+++ b/src/Sanitizers.cmake
@@ -8,7 +8,7 @@ function(
   _project_name
   ENABLE_SANITIZER_ADDRESS
   ENABLE_SANITIZER_LEAK
-  ENABLE_SANITIZER_UNDEFINED_BEHAVIOR
+  ENABLE_SANITIZER_UNDEFINED
   ENABLE_SANITIZER_THREAD
   ENABLE_SANITIZER_MEMORY
   ENABLE_SANITIZER_POINTER_COMPARE
@@ -18,7 +18,7 @@ function(
   # check if the sanitizers are supported
   check_sanitizers_support(
     SUPPORTS_SANITIZER_ADDRESS
-    SUPPORTS_SANITIZER_UNDEFINED_BEHAVIOR
+    SUPPORTS_SANITIZER_UNDEFINED
     SUPPORTS_SANITIZER_LEAK
     SUPPORTS_SANITIZER_THREAD
     SUPPORTS_SANITIZER_MEMORY
@@ -38,8 +38,11 @@ function(
           "pointer-compare"
           "pointer-subtract"
   )
-    if(${ENABLE_SANITIZER_${SANITIZER}})
-      if(${SUPPORTS_SANITIZER_${SANITIZER}})
+    set(SANITIZER_UPPERCASE "${SANITIZER}")
+    string(TOUPPER ${SANITIZER} SANITIZER_UPPERCASE)
+
+    if(${ENABLE_SANITIZER_${SANITIZER_UPPERCASE}})
+      if(${SUPPORTS_SANITIZER_${SANITIZER_UPPERCASE}})
         list(APPEND SANITIZERS ${SANITIZER})
       else()
         # do not enable the sanitizer if it is not supported
@@ -134,7 +137,7 @@ Note that some sanitizers cannot be enabled together, and this function doesn't
 Output variables:
 
 - ``ENABLE_SANITIZER_ADDRESS``: Address sanitizer is supported
-- ``ENABLE_SANITIZER_UNDEFINED_BEHAVIOR``: Undefined behavior sanitizer is supported
+- ``ENABLE_SANITIZER_UNDEFINED``: Undefined behavior sanitizer is supported
 - ``ENABLE_SANITIZER_LEAK``: Leak sanitizer is supported
 - ``ENABLE_SANITIZER_THREAD``: Thread sanitizer is supported
 - ``ENABLE_SANITIZER_MEMORY``: Memory sanitizer is supported
@@ -145,7 +148,7 @@ Output variables:
 .. code:: cmake
 
   check_sanitizers_support(ENABLE_SANITIZER_ADDRESS
-                           ENABLE_SANITIZER_UNDEFINED_BEHAVIOR
+                           ENABLE_SANITIZER_UNDEFINED
                            ENABLE_SANITIZER_LEAK
                            ENABLE_SANITIZER_THREAD
                            ENABLE_SANITIZER_MEMORY
@@ -158,7 +161,7 @@ Output variables:
 function(
   check_sanitizers_support
   ENABLE_SANITIZER_ADDRESS
-  ENABLE_SANITIZER_UNDEFINED_BEHAVIOR
+  ENABLE_SANITIZER_UNDEFINED
   ENABLE_SANITIZER_LEAK
   ENABLE_SANITIZER_THREAD
   ENABLE_SANITIZER_MEMORY
diff --git a/tests/install/CMakeLists.txt b/tests/install/CMakeLists.txt
index 091ab6de..27ff2633 100644
--- a/tests/install/CMakeLists.txt
+++ b/tests/install/CMakeLists.txt
@@ -11,7 +11,7 @@ project(anotherproj VERSION 0.1.0 LANGUAGES CXX C)
 option(FEATURE_TESTS "Enable the tests" ON)
 if(FEATURE_TESTS)
   set(ENABLE_SANITIZER_ADDRESS "ENABLE_SANITIZER_ADDRESS")
-  set(ENABLE_SANITIZER_UNDEFINED_BEHAVIOR "ENABLE_SANITIZER_UNDEFINED_BEHAVIOR")
+  set(ENABLE_SANITIZER_UNDEFINED "ENABLE_SANITIZER_UNDEFINED")
 endif()
 
 # Initialize project_options
@@ -33,7 +33,7 @@ project_options(
   # ENABLE_BUILD_WITH_TIME_TRACE
   # ENABLE_UNITY
   ${ENABLE_SANITIZER_ADDRESS}
-  ${ENABLE_SANITIZER_UNDEFINED_BEHAVIOR}
+  ${ENABLE_SANITIZER_UNDEFINED}
   # ${ENABLE_SANITIZER_LEAK}
   # ${ENABLE_SANITIZER_THREAD}
   # ${ENABLE_SANITIZER_MEMORY}
diff --git a/tests/minimal/CMakeLists.txt b/tests/minimal/CMakeLists.txt
index 9e8f02c2..7bb7ac26 100644
--- a/tests/minimal/CMakeLists.txt
+++ b/tests/minimal/CMakeLists.txt
@@ -44,7 +44,7 @@ if(ENABLE_TESTING)
   if(NOT DISABLE_SANITIZER)
     if(NOT "${CMAKE_SYSTEM_NAME}" STREQUAL "Windows")
       set(ENABLE_SANITIZER_ADDRESS "ENABLE_SANITIZER_ADDRESS")
-      set(ENABLE_SANITIZER_UNDEFINED_BEHAVIOR "ENABLE_SANITIZER_UNDEFINED_BEHAVIOR")
+      set(ENABLE_SANITIZER_UNDEFINED "ENABLE_SANITIZER_UNDEFINED")
     else()
       # or it is MSVC and has run vcvarsall
       string(FIND "$ENV{PATH}" "$ENV{VSINSTALLDIR}" index_of_vs_install_dir)
@@ -64,7 +64,7 @@ project_options(
   ENABLE_VS_ANALYSIS
   ${ENABLE_COVERAGE}
   ${ENABLE_SANITIZER_ADDRESS}
-  ${ENABLE_SANITIZER_UNDEFINED_BEHAVIOR}
+  ${ENABLE_SANITIZER_UNDEFINED}
   # DISABLE_EXCEPTIONS
   # DISABLE_RTTI
   # Note: PCH is disabled by default in developer mode because these headers become globally included and they can mask other errors
diff --git a/tests/myproj/CMakeLists.txt b/tests/myproj/CMakeLists.txt
index 041c5456..ec8b0040 100644
--- a/tests/myproj/CMakeLists.txt
+++ b/tests/myproj/CMakeLists.txt
@@ -38,7 +38,7 @@ option(FEATURE_TESTS "Enable the tests" ON)
 if(FEATURE_TESTS)
   # Enable sanitizers and static analyzers when running the tests
   set(ENABLE_SANITIZER_ADDRESS "ENABLE_SANITIZER_ADDRESS")
-  set(ENABLE_SANITIZER_UNDEFINED_BEHAVIOR "ENABLE_SANITIZER_UNDEFINED_BEHAVIOR")
+  set(ENABLE_SANITIZER_UNDEFINED "ENABLE_SANITIZER_UNDEFINED")
   set(ENABLE_SANITIZER_POINTER_COMPARE "ENABLE_SANITIZER_POINTER_COMPARE")
   set(ENABLE_SANITIZER_POINTER_SUBTRACT "ENABLE_SANITIZER_POINTER_SUBTRACT")
 endif()
@@ -71,7 +71,7 @@ project_options(
   # ENABLE_UNITY
   ${ENABLE_SANITIZER_ADDRESS}
   # ${ENABLE_SANITIZER_LEAK}
-  ${ENABLE_SANITIZER_UNDEFINED_BEHAVIOR}
+  ${ENABLE_SANITIZER_UNDEFINED}
   ${ENABLE_SANITIZER_POINTER_COMPARE}
   ${ENABLE_SANITIZER_POINTER_SUBTRACT}
   # ${ENABLE_SANITIZER_THREAD}
diff --git a/tests/rpi3/CMakeLists.txt b/tests/rpi3/CMakeLists.txt
index de9007a2..535df44f 100644
--- a/tests/rpi3/CMakeLists.txt
+++ b/tests/rpi3/CMakeLists.txt
@@ -67,7 +67,7 @@ if(ENABLE_TESTING)
   if(NOT DISABLE_SANITIZER)
     if(NOT "${CMAKE_SYSTEM_NAME}" STREQUAL "Windows")
       set(ENABLE_SANITIZER_ADDRESS "ENABLE_SANITIZER_ADDRESS")
-      set(ENABLE_SANITIZER_UNDEFINED_BEHAVIOR "ENABLE_SANITIZER_UNDEFINED_BEHAVIOR")
+      set(ENABLE_SANITIZER_UNDEFINED "ENABLE_SANITIZER_UNDEFINED")
     else()
       # or it is MSVC and has run vcvarsall
       string(FIND "$ENV{PATH}" "$ENV{VSINSTALLDIR}" index_of_vs_install_dir)
@@ -90,7 +90,7 @@ project_options(
   ENABLE_VS_ANALYSIS
   ${ENABLE_COVERAGE}
   ${ENABLE_SANITIZER_ADDRESS}
-  ${ENABLE_SANITIZER_UNDEFINED_BEHAVIOR}
+  ${ENABLE_SANITIZER_UNDEFINED}
   DISABLE_EXCEPTIONS
   DISABLE_RTTI
   # Note: PCH is disabled by default in developer mode because these headers become globally included and they can mask other errors
diff --git a/tests/rpi4-vcpkg/CMakeLists.txt b/tests/rpi4-vcpkg/CMakeLists.txt
index 07dc289b..8f86ab77 100644
--- a/tests/rpi4-vcpkg/CMakeLists.txt
+++ b/tests/rpi4-vcpkg/CMakeLists.txt
@@ -44,7 +44,7 @@ if(ENABLE_TESTING)
   if(NOT DISABLE_SANITIZER)
     if(NOT "${CMAKE_SYSTEM_NAME}" STREQUAL "Windows")
       set(ENABLE_SANITIZER_ADDRESS "ENABLE_SANITIZER_ADDRESS")
-      set(ENABLE_SANITIZER_UNDEFINED_BEHAVIOR "ENABLE_SANITIZER_UNDEFINED_BEHAVIOR")
+      set(ENABLE_SANITIZER_UNDEFINED "ENABLE_SANITIZER_UNDEFINED")
     else()
       # or it is MSVC and has run vcvarsall
       string(FIND "$ENV{PATH}" "$ENV{VSINSTALLDIR}" index_of_vs_install_dir)
@@ -64,7 +64,7 @@ project_options(
   ENABLE_VS_ANALYSIS
   ${ENABLE_COVERAGE}
   ${ENABLE_SANITIZER_ADDRESS}
-  ${ENABLE_SANITIZER_UNDEFINED_BEHAVIOR}
+  ${ENABLE_SANITIZER_UNDEFINED}
   # DISABLE_EXCEPTIONS
   # DISABLE_RTTI
   # Note: PCH is disabled by default in developer mode because these headers become globally included and they can mask other errors
diff --git a/tests/rpi4/CMakeLists.txt b/tests/rpi4/CMakeLists.txt
index 68b245ae..27fb4f66 100644
--- a/tests/rpi4/CMakeLists.txt
+++ b/tests/rpi4/CMakeLists.txt
@@ -62,7 +62,7 @@ if(ENABLE_TESTING)
   if(NOT DISABLE_SANITIZER)
     if(NOT "${CMAKE_SYSTEM_NAME}" STREQUAL "Windows")
       set(ENABLE_SANITIZER_ADDRESS "ENABLE_SANITIZER_ADDRESS")
-      set(ENABLE_SANITIZER_UNDEFINED_BEHAVIOR "ENABLE_SANITIZER_UNDEFINED_BEHAVIOR")
+      set(ENABLE_SANITIZER_UNDEFINED "ENABLE_SANITIZER_UNDEFINED")
     else()
       # or it is MSVC and has run vcvarsall
       string(FIND "$ENV{PATH}" "$ENV{VSINSTALLDIR}" index_of_vs_install_dir)
@@ -82,7 +82,7 @@ project_options(
   ENABLE_VS_ANALYSIS
   ${ENABLE_COVERAGE}
   ${ENABLE_SANITIZER_ADDRESS}
-  ${ENABLE_SANITIZER_UNDEFINED_BEHAVIOR}
+  ${ENABLE_SANITIZER_UNDEFINED}
   DISABLE_EXCEPTIONS
   DISABLE_RTTI
   # Note: PCH is disabled by default in developer mode because these headers become globally included and they can mask other errors