diff --git a/cmake/compiler.cmake b/cmake/compiler.cmake
index dd6f71c8..1d805ea0 100644
--- a/cmake/compiler.cmake
+++ b/cmake/compiler.cmake
@@ -348,6 +348,8 @@ endif()
 
 if(MSVC)
   check_compiler_flag("/WX" CC_HAS_WERROR)
+  check_compiler_flag("/fsanitize=address" CC_HAS_ASAN)
+  check_compiler_flag("/fsanitize=undefined" CC_HAS_UBSAN)
 else()
   #
   # GCC started to warn for unused result starting from 4.2, and
@@ -839,19 +841,26 @@ macro(setup_compile_flags)
   endif()
 
   if(ENABLE_ASAN)
-    add_compile_flags("C;CXX" "-fsanitize=address")
+    if(NOT MSVC)
+      add_compile_flags("C;CXX" "-fsanitize=address")
+    else()
+      add_compile_flags("C;CXX" "/fsanitize=address")
+    endif()
     add_definitions(-DASAN_ENABLED=1)
   endif()
 
   if(ENABLE_UBSAN)
-    add_compile_flags("C;CXX" "-fsanitize=undefined" "-fsanitize-undefined-trap-on-error")
+    if(NOT MSVC)
+      add_compile_flags("C;CXX" "-fsanitize=undefined" "-fsanitize-undefined-trap-on-error")
+    else()
+      add_compile_flags("C;CXX" "/fsanitize=undefined")
+    endif()
     add_definitions(-DUBSAN_ENABLED=1)
   endif()
 
   if(ENABLE_GCOV)
     if(NOT HAVE_GCOV)
-      message(FATAL_ERROR
-        "ENABLE_GCOV option requested but gcov library is not found")
+      message(FATAL_ERROR "ENABLE_GCOV option requested but gcov library is not found")
     endif()
 
     add_compile_flags("C;CXX" "-fprofile-arcs" "-ftest-coverage")
diff --git a/src/core.c b/src/core.c
index 040217ad..3f52d4e2 100644
--- a/src/core.c
+++ b/src/core.c
@@ -25654,7 +25654,10 @@ __dll_export
 };
 
 #ifdef __SANITIZE_ADDRESS__
-LIBMDBX_API __attribute__((__weak__)) const char *__asan_default_options(void) {
+#if !defined(_MSC_VER) || __has_attribute(weak)
+LIBMDBX_API __attribute__((__weak__))
+#endif
+const char *__asan_default_options(void) {
   return "symbolize=1:allow_addr2line=1:"
 #if MDBX_DEBUG
          "debug=1:"
diff --git a/src/mdbx.c++ b/src/mdbx.c++
index 8a74e412..590cc07d 100644
--- a/src/mdbx.c++
+++ b/src/mdbx.c++
@@ -14,6 +14,12 @@
 #define __USE_MINGW_ANSI_STDIO 1
 #endif /* MinGW */
 
+/* Workaround for MSVC' header `extern "C"` vs `std::` redefinition bug */
+#if defined(_MSC_VER) && defined(__SANITIZE_ADDRESS__) &&                      \
+    !defined(_DISABLE_VECTOR_ANNOTATION)
+#define _DISABLE_VECTOR_ANNOTATION
+#endif /* _DISABLE_VECTOR_ANNOTATION */
+
 #include "../mdbx.h++"
 
 #include "internals.h"
diff --git a/test/base.h++ b/test/base.h++
index f4e083bd..f3a7701e 100644
--- a/test/base.h++
+++ b/test/base.h++
@@ -30,6 +30,10 @@
 #define _WIN32_WINNT 0x0601 /* Windows 7 */
 #endif
 #ifdef _MSC_VER
+/* Workaround for MSVC' header `extern "C"` vs `std::` redefinition bug */
+#if defined(__SANITIZE_ADDRESS__) && !defined(_DISABLE_VECTOR_ANNOTATION)
+#define _DISABLE_VECTOR_ANNOTATION
+#endif /* _DISABLE_VECTOR_ANNOTATION */
 #ifndef _CRT_SECURE_NO_WARNINGS
 #define _CRT_SECURE_NO_WARNINGS
 #endif /* _CRT_SECURE_NO_WARNINGS */