diff --git a/.checkpackageignore b/.checkpackageignore
index 0b1f71d8c6..973ecfba89 100644
--- a/.checkpackageignore
+++ b/.checkpackageignore
@@ -244,7 +244,6 @@ package/cfm/S65cfm lib_sysv.Indent lib_sysv.Variables
 package/cgroupfs-mount/S30cgroupfs Shellcheck lib_sysv.Indent lib_sysv.Variables
 package/chipmunk/0001-Fix-build-failure-on-musl.patch lib_patch.Upstream
 package/chrony/S49chronyd lib_sysv.Variables
-package/cmake/0001-rename-cmake-rootfile.patch lib_patch.Upstream
 package/collectd/0001-src-netlink.c-remove-REG_NOERROR.patch lib_patch.Upstream
 package/connman/S45connman lib_sysv.Variables
 package/copas/0001-Do-not-load-coxpcall-for-LuaJIT.patch lib_patch.Upstream
diff --git a/package/cmake/0001-rename-cmake-rootfile.patch b/package/cmake/0001-rename-cmake-rootfile.patch
index c73e0dfe02..72da31c8a3 100644
--- a/package/cmake/0001-rename-cmake-rootfile.patch
+++ b/package/cmake/0001-rename-cmake-rootfile.patch
@@ -10,9 +10,11 @@ files are removed at build time via the target-finalize rule.
 This buildroot-specific patch makes sure ctest looks also for
 "Modules/CMake.cmake.ctest" before complaining
 
+Upstream: N/A (specific to buildroot)
+
 [Vincent: tweak patch for 3.6.3]
 [James: tweak patch for 3.15.4]
-[Bernd: tweak patch for 3.27.0 & 3.31.2]
+[Bernd: rebased for 4.3.0]
 
 Signed-off-by: Davide Viti <zinosat@tiscali.it>
 Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
@@ -26,7 +28,7 @@ diff --git a/Source/cmake.cxx b/Source/cmake.cxx
 index 3772f09985..c317e4af38 100644
 --- a/Source/cmake.cxx
 +++ b/Source/cmake.cxx
-@@ -1896,7 +1896,12 @@ int cmake::AddCMakePaths()
+@@ -1987,7 +1987,12 @@ int cmake::AddCMakePaths()
                        cmStateEnums::INTERNAL);
  #endif
    if (!cmSystemTools::FileExists(
@@ -39,7 +41,7 @@ index 3772f09985..c317e4af38 100644
 +  {
      // couldn't find modules
      cmSystemTools::Error(
-       "Could not find CMAKE_ROOT !!!\n"
+       cmStrCat("Could not find CMAKE_ROOT !!!\n"
 -- 
 2.20.1
 
diff --git a/package/cmake/Config.in.host b/package/cmake/Config.in.host
index 86f93b0ac8..0d96ee2233 100644
--- a/package/cmake/Config.in.host
+++ b/package/cmake/Config.in.host
@@ -75,10 +75,15 @@ config BR2_HOST_CMAKE_AT_LEAST_4_2
 	bool
 	select BR2_HOST_CMAKE_AT_LEAST_4_1
 
+config BR2_HOST_CMAKE_AT_LEAST_4_3
+	bool
+	select BR2_HOST_CMAKE_AT_LEAST_4_2
+
 # This order guarantees that the highest version is set, as kconfig
 # stops affecting a value on the first matching default.
 config BR2_HOST_CMAKE_AT_LEAST
 	string
+	default "4.3"	if BR2_HOST_CMAKE_AT_LEAST_4_3
 	default "4.2"	if BR2_HOST_CMAKE_AT_LEAST_4_2
 	default "4.1"	if BR2_HOST_CMAKE_AT_LEAST_4_1
 	default "4.0"	if BR2_HOST_CMAKE_AT_LEAST_4_0
diff --git a/package/cmake/cmake.hash b/package/cmake/cmake.hash
index 88744ac703..605bed2a40 100644
--- a/package/cmake/cmake.hash
+++ b/package/cmake/cmake.hash
@@ -1,5 +1,5 @@
-# From https://cmake.org/files/v4.2/cmake-4.2.3-SHA-256.txt
-sha256  7efaccde8c5a6b2968bad6ce0fe60e19b6e10701a12fce948c2bf79bac8a11e9  cmake-4.2.3.tar.gz
+# From https://cmake.org/files/v4.3/cmake-4.3.0-SHA-256.txt
+sha256  f51b3c729f85d8dde46a92c071d2826ea6afb77d850f46894125de7cc51baa77  cmake-4.3.0.tar.gz
 
 # Locally calculated
-sha256  1e0d48f16c60f400838a96989684ae12cec35cb96688db11e8cb0204058cf4b8  LICENSE.rst
+sha256  4382e7c1879ac90e3f101a395d23846fa4dbcaa1eed7265b43681e348754825d  LICENSE.rst
diff --git a/package/cmake/cmake.mk b/package/cmake/cmake.mk
index f5d1787d19..952e8174f4 100644
--- a/package/cmake/cmake.mk
+++ b/package/cmake/cmake.mk
@@ -5,8 +5,8 @@
 ################################################################################
 
 # When updating the version, please also update BR2_HOST_CMAKE_AT_LEAST_X_Y
-CMAKE_VERSION_MAJOR = 4.2
-CMAKE_VERSION = $(CMAKE_VERSION_MAJOR).3
+CMAKE_VERSION_MAJOR = 4.3
+CMAKE_VERSION = $(CMAKE_VERSION_MAJOR).0
 CMAKE_SITE = https://cmake.org/files/v$(CMAKE_VERSION_MAJOR)
 CMAKE_LICENSE = BSD-3-Clause
 CMAKE_LICENSE_FILES = LICENSE.rst