diff --git a/hal/riscv-rvv/include/imgproc.hpp b/hal/riscv-rvv/include/imgproc.hpp
index 58f750799f..ffe3f75f20 100644
--- a/hal/riscv-rvv/include/imgproc.hpp
+++ b/hal/riscv-rvv/include/imgproc.hpp
@@ -236,10 +236,8 @@ int integral(int depth, int sdepth, int sqdepth,
              uchar* tilted_data, [[maybe_unused]] size_t tilted_step,
              int width, int height, int cn);
 
-// Diasbled due to accuracy issue.
-// Details see https://github.com/opencv/opencv/issues/27407.
-//#undef cv_hal_integral
-//#define cv_hal_integral cv::rvv_hal::imgproc::integral
+#undef cv_hal_integral
+#define cv_hal_integral cv::rvv_hal::imgproc::integral
 
 /* ############ laplacian ############ */
 int laplacian(const uint8_t* src_data, size_t src_step,
diff --git a/hal/riscv-rvv/src/imgproc/integral.cpp b/hal/riscv-rvv/src/imgproc/integral.cpp
index e0c7f44995..9a82538a2a 100644
--- a/hal/riscv-rvv/src/imgproc/integral.cpp
+++ b/hal/riscv-rvv/src/imgproc/integral.cpp
@@ -129,6 +129,11 @@ int integral(int depth, int sdepth, int sqdepth,
         return CV_HAL_ERROR_NOT_IMPLEMENTED;
     }
 
+    // CV_32F sqsum kept on generic path due to accumulation-order sensitivity, see #27407
+    if (sqsum_data && (sdepth == CV_32F || sqdepth == CV_32F)) {
+        return CV_HAL_ERROR_NOT_IMPLEMENTED;
+    }
+
     // Skip images that are too small
     if (!(width >> 8 || height >> 8)) {
         return CV_HAL_ERROR_NOT_IMPLEMENTED;