diff --git a/src/test/app/HostFuncImpl_test.cpp b/src/test/app/HostFuncImpl_test.cpp
index dbcf9266fd..32379495dc 100644
--- a/src/test/app/HostFuncImpl_test.cpp
+++ b/src/test/app/HostFuncImpl_test.cpp
@@ -2252,6 +2252,12 @@ struct HostFuncImpl_test : public beast::unit_test::suite
             auto const result = hfs.floatSet(10, -1, 0);
             BEAST_EXPECT(result) && BEAST_EXPECT(*result == float1);
         }
+
+        {
+            auto const result = hfs.floatSet(1, Number::maxExponent + normalExp + 1, 0);
+            BEAST_EXPECT(!result) &&
+                BEAST_EXPECT(result.error() == HostFunctionError::FLOAT_COMPUTATION_ERROR);
+        }
     }
 
     void
diff --git a/src/xrpld/app/wasm/detail/HostFuncImplFloat.cpp b/src/xrpld/app/wasm/detail/HostFuncImplFloat.cpp
index f66e01d115..7e1b0382b1 100644
--- a/src/xrpld/app/wasm/detail/HostFuncImplFloat.cpp
+++ b/src/xrpld/app/wasm/detail/HostFuncImplFloat.cpp
@@ -221,6 +221,7 @@ floatFromIntImpl(int64_t x, int32_t mode)
     // LCOV_EXCL_START
     catch (...)
     {
+        return Unexpected(HostFunctionError::FLOAT_COMPUTATION_ERROR);
     }
     return Unexpected(HostFunctionError::FLOAT_COMPUTATION_ERROR);
     // LCOV_EXCL_STOP
@@ -242,6 +243,7 @@ floatFromUintImpl(uint64_t x, int32_t mode)
     // LCOV_EXCL_START
     catch (...)
     {
+        return Unexpected(HostFunctionError::FLOAT_COMPUTATION_ERROR);
     }
     return Unexpected(HostFunctionError::FLOAT_COMPUTATION_ERROR);
     // LCOV_EXCL_STOP
@@ -262,6 +264,7 @@ floatSetImpl(int64_t mantissa, int32_t exponent, int32_t mode)
     }
     catch (...)
     {
+        return Unexpected(HostFunctionError::FLOAT_COMPUTATION_ERROR);
     }
     return Unexpected(HostFunctionError::FLOAT_COMPUTATION_ERROR);
 }
@@ -284,6 +287,7 @@ floatCompareImpl(Slice const& x, Slice const& y)
     // LCOV_EXCL_START
     catch (...)
     {
+        return Unexpected(HostFunctionError::FLOAT_COMPUTATION_ERROR);
     }
     return Unexpected(HostFunctionError::FLOAT_COMPUTATION_ERROR);
     // LCOV_EXCL_STOP
@@ -311,6 +315,7 @@ floatAddImpl(Slice const& x, Slice const& y, int32_t mode)
     // LCOV_EXCL_START
     catch (...)
     {
+        return Unexpected(HostFunctionError::FLOAT_COMPUTATION_ERROR);
     }
     return Unexpected(HostFunctionError::FLOAT_COMPUTATION_ERROR);
     // LCOV_EXCL_STOP
@@ -337,6 +342,7 @@ floatSubtractImpl(Slice const& x, Slice const& y, int32_t mode)
     // LCOV_EXCL_START
     catch (...)
     {
+        return Unexpected(HostFunctionError::FLOAT_COMPUTATION_ERROR);
     }
     return Unexpected(HostFunctionError::FLOAT_COMPUTATION_ERROR);
     // LCOV_EXCL_STOP
@@ -363,6 +369,7 @@ floatMultiplyImpl(Slice const& x, Slice const& y, int32_t mode)
     // LCOV_EXCL_START
     catch (...)
     {
+        return Unexpected(HostFunctionError::FLOAT_COMPUTATION_ERROR);
     }
     return Unexpected(HostFunctionError::FLOAT_COMPUTATION_ERROR);
     // LCOV_EXCL_STOP
@@ -388,6 +395,7 @@ floatDivideImpl(Slice const& x, Slice const& y, int32_t mode)
     }
     catch (...)
     {
+        return Unexpected(HostFunctionError::FLOAT_COMPUTATION_ERROR);
     }
     return Unexpected(HostFunctionError::FLOAT_COMPUTATION_ERROR);
 }
@@ -415,6 +423,7 @@ floatRootImpl(Slice const& x, int32_t n, int32_t mode)
     // LCOV_EXCL_START
     catch (...)
     {
+        return Unexpected(HostFunctionError::FLOAT_COMPUTATION_ERROR);
     }
     return Unexpected(HostFunctionError::FLOAT_COMPUTATION_ERROR);
     // LCOV_EXCL_STOP
@@ -445,6 +454,7 @@ floatPowerImpl(Slice const& x, int32_t n, int32_t mode)
     // LCOV_EXCL_START
     catch (...)
     {
+        return Unexpected(HostFunctionError::FLOAT_COMPUTATION_ERROR);
     }
     return Unexpected(HostFunctionError::FLOAT_COMPUTATION_ERROR);
     // LCOV_EXCL_STOP
@@ -470,6 +480,7 @@ floatLogImpl(Slice const& x, int32_t mode)
     // LCOV_EXCL_START
     catch (...)
     {
+        return Unexpected(HostFunctionError::FLOAT_COMPUTATION_ERROR);
     }
     return Unexpected(HostFunctionError::FLOAT_COMPUTATION_ERROR);
     // LCOV_EXCL_STOP