diff --git a/extension/icu/icu-table-range.cpp b/extension/icu/icu-table-range.cpp
index 940b1ef6172..9f466a7d656 100644
--- a/extension/icu/icu-table-range.cpp
+++ b/extension/icu/icu-table-range.cpp
@@ -90,6 +90,11 @@ struct ICUTableRange {
 
 		auto &inputs = input.inputs;
 		D_ASSERT(inputs.size() == 3);
+		for (const auto &value : inputs) {
+			if (value.IsNull()) {
+				throw BinderException("RANGE with NULL bounds is not supported");
+			}
+		}
 		result->start = inputs[0].GetValue<timestamp_t>();
 		result->end = inputs[1].GetValue<timestamp_t>();
 		result->increment = inputs[2].GetValue<interval_t>();
diff --git a/test/fuzzer/sqlsmith/timestamptz_null_range.test b/test/fuzzer/sqlsmith/timestamptz_null_range.test
new file mode 100644
index 00000000000..1d44b7c1ab5
--- /dev/null
+++ b/test/fuzzer/sqlsmith/timestamptz_null_range.test
@@ -0,0 +1,17 @@
+# name: test/fuzzer/sqlsmith/timestamptz_null_range.test
+# description: Check range bounds for NULL
+# group: [sqlsmith]
+
+require icu
+
+require no_extension_autoloading
+
+statement error
+SELECT NULL FROM (
+	SELECT 4767 
+	FROM generate_series(CAST('290309-12-22 (BC) 00:00:00+00' AS TIMESTAMP WITH TIME ZONE), NULL, NULL) 
+	  AS t6(c1, c2, c3, c4, c5)
+	) 
+	AS t64
+----
+RANGE with NULL bounds is not supported