diff --git a/3rdparty/ippicv/ippicv.cmake b/3rdparty/ippicv/ippicv.cmake
index 257af6fcc6..08cf091db3 100644
--- a/3rdparty/ippicv/ippicv.cmake
+++ b/3rdparty/ippicv/ippicv.cmake
@@ -2,32 +2,32 @@ function(download_ippicv root_var)
   set(${root_var} "" PARENT_SCOPE)
 
   # Commit SHA in the opencv_3rdparty repo
-  set(IPPICV_COMMIT "a56b6ac6f030c312b2dce17430eef13aed9af274")
+  set(IPPICV_COMMIT "1224f78da6684df04397ac0f40c961ed37f79ccb")
   # Define actual ICV versions
   if(APPLE)
     set(OPENCV_ICV_PLATFORM "macosx")
     set(OPENCV_ICV_PACKAGE_SUBDIR "ippicv_mac")
-    set(OPENCV_ICV_NAME "ippicv_2020_mac_intel64_20191018_general.tgz")
-    set(OPENCV_ICV_HASH "1c3d675c2a2395d094d523024896e01b")
+    set(OPENCV_ICV_NAME "ippicv_2021.8_mac_intel64_20230330_general.tgz")
+    set(OPENCV_ICV_HASH "d2b234a86af1b616958619a4560356d9")
   elseif((UNIX AND NOT ANDROID) OR (UNIX AND ANDROID_ABI MATCHES "x86"))
     set(OPENCV_ICV_PLATFORM "linux")
     set(OPENCV_ICV_PACKAGE_SUBDIR "ippicv_lnx")
     if(X86_64)
-      set(OPENCV_ICV_NAME "ippicv_2020_lnx_intel64_20191018_general.tgz")
-      set(OPENCV_ICV_HASH "7421de0095c7a39162ae13a6098782f9")
+      set(OPENCV_ICV_NAME "ippicv_2021.8_lnx_intel64_20230330_general.tgz")
+      set(OPENCV_ICV_HASH "43219bdc7e3805adcbe3a1e2f1f3ef3b")
     else()
-      set(OPENCV_ICV_NAME "ippicv_2020_lnx_ia32_20191018_general.tgz")
-      set(OPENCV_ICV_HASH "ad189a940fb60eb71f291321322fe3e8")
+      set(OPENCV_ICV_NAME "ippicv_2021.8_lnx_ia32_20230330_general.tgz")
+      set(OPENCV_ICV_HASH "165875443d72faa3fd2146869da90d07")
     endif()
   elseif(WIN32 AND NOT ARM)
     set(OPENCV_ICV_PLATFORM "windows")
     set(OPENCV_ICV_PACKAGE_SUBDIR "ippicv_win")
     if(X86_64)
-      set(OPENCV_ICV_NAME "ippicv_2020_win_intel64_20191018_general.zip")
-      set(OPENCV_ICV_HASH "879741a7946b814455eee6c6ffde2984")
+      set(OPENCV_ICV_NAME "ippicv_2021.8_win_intel64_20230330_general.zip")
+      set(OPENCV_ICV_HASH "71e4f58de939f0348ec7fb58ffb17dbf")
     else()
-      set(OPENCV_ICV_NAME "ippicv_2020_win_ia32_20191018_general.zip")
-      set(OPENCV_ICV_HASH "cd39bdf0c2e1cac9a61101dad7a2413e")
+      set(OPENCV_ICV_NAME "ippicv_2021.8_win_ia32_20230330_general.zip")
+      set(OPENCV_ICV_HASH "57fd4648cfe64eae9e2ad9d50173a553")
     endif()
   else()
     return()
diff --git a/modules/core/src/count_non_zero.dispatch.cpp b/modules/core/src/count_non_zero.dispatch.cpp
index cd3ed84350..d0ce1ef989 100644
--- a/modules/core/src/count_non_zero.dispatch.cpp
+++ b/modules/core/src/count_non_zero.dispatch.cpp
@@ -62,10 +62,6 @@ static bool ipp_countNonZero( Mat &src, int &res )
 {
     CV_INSTRUMENT_REGION_IPP();
 
-    // see https://github.com/opencv/opencv/issues/17453
-    if (src.dims <= 2 && src.step > 520000 && cv::ipp::getIppTopFeatures() == ippCPUID_SSE42)
-        return false;
-
 #if IPP_VERSION_X100 < 201801
     // Poor performance of SSE42
     if(cv::ipp::getIppTopFeatures() == ippCPUID_SSE42)
diff --git a/modules/core/src/mathfuncs_core.dispatch.cpp b/modules/core/src/mathfuncs_core.dispatch.cpp
index 3c53ab1c38..e48f84ebbe 100644
--- a/modules/core/src/mathfuncs_core.dispatch.cpp
+++ b/modules/core/src/mathfuncs_core.dispatch.cpp
@@ -7,10 +7,6 @@
 #include "mathfuncs_core.simd.hpp"
 #include "mathfuncs_core.simd_declarations.hpp" // defines CV_CPU_DISPATCH_MODES_ALL=AVX2,...,BASELINE based on CMakeLists.txt content
 
-
-#define IPP_DISABLE_MAGNITUDE_32F 1  // accuracy: https://github.com/opencv/opencv/issues/19506
-
-
 namespace cv { namespace hal {
 
 ///////////////////////////////////// ATAN2 ////////////////////////////////////
@@ -48,25 +44,8 @@ void magnitude32f(const float* x, const float* y, float* mag, int len)
     CV_INSTRUMENT_REGION();
 
     CALL_HAL(magnitude32f, cv_hal_magnitude32f, x, y, mag, len);
-
-#ifdef HAVE_IPP
-    bool allowIPP = true;
-#ifdef IPP_DISABLE_MAGNITUDE_32F
-    if (cv::ipp::getIppTopFeatures() & (
-#if IPP_VERSION_X100 >= 201700
-            ippCPUID_AVX512F |
-#endif
-            ippCPUID_AVX2)
-    )
-    {
-        allowIPP = (len & 7) == 0;
-    }
-#endif
-
     // SSE42 performance issues
-    CV_IPP_RUN((IPP_VERSION_X100 > 201800 || cv::ipp::getIppTopFeatures() != ippCPUID_SSE42) && allowIPP,
-        CV_INSTRUMENT_FUN_IPP(ippsMagnitude_32f, x, y, mag, len) >= 0);
-#endif
+    CV_IPP_RUN(IPP_VERSION_X100 > 201800 || cv::ipp::getIppTopFeatures() != ippCPUID_SSE42, CV_INSTRUMENT_FUN_IPP(ippsMagnitude_32f, x, y, mag, len) >= 0);
 
     CV_CPU_DISPATCH(magnitude32f, (x, y, mag, len),
         CV_CPU_DISPATCH_MODES_ALL);
diff --git a/modules/core/src/norm.cpp b/modules/core/src/norm.cpp
index fad641554d..cab720bd3f 100644
--- a/modules/core/src/norm.cpp
+++ b/modules/core/src/norm.cpp
@@ -972,16 +972,6 @@ static bool ipp_norm(InputArray _src1, InputArray _src2, int normType, InputArra
                 type == CV_16UC3 ? (ippiMaskNormDiffFuncC3)ippiNormDiff_L2_16u_C3CMR :
                 type == CV_32FC3 ? (ippiMaskNormDiffFuncC3)ippiNormDiff_L2_32f_C3CMR :
                 0) : 0;
-            if (cv::ipp::getIppTopFeatures() & (
-#if IPP_VERSION_X100 >= 201700
-                    ippCPUID_AVX512F |
-#endif
-                    ippCPUID_AVX2)
-            ) // IPP_DISABLE_NORM_16UC3_mask_small (#11399)
-            {
-                if (normType == NORM_L1 && type == CV_16UC3 && sz.width < 16)
-                    return false;
-            }
             if( ippiNormDiff_C3CMR )
             {
                 Ipp64f norm1, norm2, norm3;