diff --git a/ext/standard/basic_functions.c b/ext/standard/basic_functions.c
index 00713766fde60..613c3070e7a74 100755
--- a/ext/standard/basic_functions.c
+++ b/ext/standard/basic_functions.c
@@ -296,6 +296,8 @@ PHP_MINIT_FUNCTION(basic) /* {{{ */
 	php_ce_incomplete_class = register_class___PHP_Incomplete_Class();
 	php_register_incomplete_class_handlers();
 
+	php_var_ce_UnserializationFailedException = register_class_UnserializationFailedException(zend_ce_exception);
+
 	assertion_error_ce = register_class_AssertionError(zend_ce_error);
 
 #ifdef ENABLE_TEST_CLASS
diff --git a/ext/standard/basic_functions.stub.php b/ext/standard/basic_functions.stub.php
index 335974b44c609..3592352f42bc1 100755
--- a/ext/standard/basic_functions.stub.php
+++ b/ext/standard/basic_functions.stub.php
@@ -2849,6 +2849,13 @@ function memory_get_peak_usage(bool $real_usage = false): int {}
 
 function memory_reset_peak_usage(): void {}
 
+/**
+ * @strict-properties
+ */
+class UnserializationFailedException extends \Exception
+{
+}
+
 /* versioning.c */
 
 /** @compile-time-eval */
diff --git a/ext/standard/basic_functions_arginfo.h b/ext/standard/basic_functions_arginfo.h
index a5b7b9a0dcff8..bddc5cdd7ae79 100644
--- a/ext/standard/basic_functions_arginfo.h
+++ b/ext/standard/basic_functions_arginfo.h
@@ -1,5 +1,5 @@
 /* This is a generated file, edit the .stub.php file instead.
- * Stub hash: e46c8ef36dc0f29d877ae6e4096135414d0a4412 */
+ * Stub hash: 1d2a0d8dee8dcf1d9956dbc9326ab0b4aeb2da51 */
 
 ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_set_time_limit, 0, 1, _IS_BOOL, 0)
 	ZEND_ARG_TYPE_INFO(0, seconds, IS_LONG, 0)
@@ -3481,6 +3481,11 @@ static const zend_function_entry class_AssertionError_methods[] = {
 	ZEND_FE_END
 };
 
+
+static const zend_function_entry class_UnserializationFailedException_methods[] = {
+	ZEND_FE_END
+};
+
 static void register_basic_functions_symbols(int module_number)
 {
 	REGISTER_LONG_CONSTANT("EXTR_OVERWRITE", PHP_EXTR_OVERWRITE, CONST_PERSISTENT);
@@ -3746,3 +3751,14 @@ static zend_class_entry *register_class_AssertionError(zend_class_entry *class_e
 
 	return class_entry;
 }
+
+static zend_class_entry *register_class_UnserializationFailedException(zend_class_entry *class_entry_Exception)
+{
+	zend_class_entry ce, *class_entry;
+
+	INIT_CLASS_ENTRY(ce, "UnserializationFailedException", class_UnserializationFailedException_methods);
+	class_entry = zend_register_internal_class_ex(&ce, class_entry_Exception);
+	class_entry->ce_flags |= ZEND_ACC_NO_DYNAMIC_PROPERTIES;
+
+	return class_entry;
+}
diff --git a/ext/standard/php_var.h b/ext/standard/php_var.h
index b816da8e19de9..7ce3fe951d573 100644
--- a/ext/standard/php_var.h
+++ b/ext/standard/php_var.h
@@ -22,6 +22,8 @@
 
 PHP_MINIT_FUNCTION(var);
 
+extern PHPAPI zend_class_entry *php_var_ce_UnserializationFailedException;
+
 PHPAPI void php_var_dump(zval *struc, int level);
 PHPAPI void php_var_export(zval *struc, int level);
 PHPAPI void php_var_export_ex(zval *struc, int level, smart_str *buf);
diff --git a/ext/standard/var.c b/ext/standard/var.c
index 268c535a80242..1507e7120fad5 100644
--- a/ext/standard/var.c
+++ b/ext/standard/var.c
@@ -35,6 +35,8 @@ struct php_serialize_data {
 	uint32_t n;
 };
 
+PHPAPI zend_class_entry *php_var_ce_UnserializationFailedException;
+
 #define COMMON (is_ref ? "&" : "")
 
 static void php_array_element_dump(zval *zv, zend_ulong index, zend_string *key, int level) /* {{{ */
@@ -1399,7 +1401,7 @@ PHPAPI void php_unserialize_with_options(zval *return_value, const char *buf, co
 	}
 	if (!php_var_unserialize(retval, &p, p + buf_len, &var_hash)) {
 		if (!EG(exception)) {
-			php_error_docref(NULL, E_NOTICE, "Error at offset " ZEND_LONG_FMT " of %zd bytes",
+			php_error_docref(NULL, E_WARNING, "Error at offset " ZEND_LONG_FMT " of %zd bytes",
 				(zend_long)((char*)p - buf), buf_len);
 		}
 		if (BG(unserialize).level <= 1) {
@@ -1413,6 +1415,10 @@ PHPAPI void php_unserialize_with_options(zval *return_value, const char *buf, co
 		gc_check_possible_root(ref);
 	}
 
+	if (EG(exception)) {
+		zend_throw_exception_ex(php_var_ce_UnserializationFailedException, 0, "An Exception was thrown during unserialization");
+	}
+
 cleanup:
 	if (class_hash) {
 		zend_hash_destroy(class_hash);
diff --git a/ext/standard/var_unserializer.re b/ext/standard/var_unserializer.re
index bcf19002fc0a2..51843ae97a151 100644
--- a/ext/standard/var_unserializer.re
+++ b/ext/standard/var_unserializer.re
@@ -279,6 +279,9 @@ PHPAPI void var_destroy(php_unserialize_data_t *var_hashx)
 						delayed_call_failed = 1;
 						GC_ADD_FLAGS(Z_OBJ_P(zv), IS_OBJ_DESTRUCTOR_CALLED);
 					}
+					if (EG(exception)) {
+						zend_throw_exception_ex(php_var_ce_UnserializationFailedException, 0, "An Exception was thrown in %s::__wakeup()", ZSTR_VAL(fci.object->ce->name));
+					}
 					BG(serialize_lock)--;
 
 					zval_ptr_dtor(&retval);
@@ -296,6 +299,7 @@ PHPAPI void var_destroy(php_unserialize_data_t *var_hashx)
 						Z_OBJCE_P(zv)->__unserialize, Z_OBJ_P(zv), NULL, &param);
 					if (EG(exception)) {
 						delayed_call_failed = 1;
+						zend_throw_exception_ex(php_var_ce_UnserializationFailedException, 0, "An Exception was thrown in %s::__unserialize()", ZSTR_VAL(Z_OBJ_P(zv)->ce->name));
 						GC_ADD_FLAGS(Z_OBJ_P(zv), IS_OBJ_DESTRUCTOR_CALLED);
 					}
 					BG(serialize_lock)--;