diff --git a/pkgs/by-name/ke/keystone/cmake-3.10.patch b/pkgs/by-name/ke/keystone/cmake-3.10.patch
new file mode 100644
index 000000000000..5d1483f6f756
--- /dev/null
+++ b/pkgs/by-name/ke/keystone/cmake-3.10.patch
@@ -0,0 +1,93 @@
+From f3f792cc05080a4bcc3c2886c0c7cee9294c4a05 Mon Sep 17 00:00:00 2001
+From: Jordan Moore <lockbox@struct.foo>
+Date: Mon, 2 Jun 2025 16:58:31 -0400
+Subject: [PATCH] fix: build with modern cmake
+
+---
+ CMakeLists.txt        | 19 +------------------
+ kstool/CMakeLists.txt |  2 +-
+ llvm/CMakeLists.txt   | 15 +--------------
+ 3 files changed, 3 insertions(+), 33 deletions(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 938d4983..9ce08362 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -1,7 +1,7 @@
+ # Keystone Assembler Engine (www.keystone-engine.org)
+ # By Nguyen Anh Quynh, 2016
+ 
+-cmake_minimum_required(VERSION 2.8.7)
++cmake_minimum_required(VERSION 3.10.0)
+ project(keystone)
+ 
+ set(KEYSTONE_VERSION_MAJOR 0)
+@@ -15,23 +15,6 @@ if (NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+   set(CMAKE_BUILD_TYPE "Debug")
+ endif()
+ 
+-if (POLICY CMP0022)
+-  cmake_policy(SET CMP0022 NEW) # automatic when 2.8.12 is required
+-endif()
+-
+-if (POLICY CMP0051)
+-  # CMake 3.1 and higher include generator expressions of the form
+-  # $<TARGETLIB:obj> in the SOURCES property.  These need to be
+-  # stripped everywhere that access the SOURCES property, so we just
+-  # defer to the OLD behavior of not including generator expressions
+-  # in the output for now.
+-  cmake_policy(SET CMP0051 OLD)
+-endif()
+-
+-if (POLICY CMP0063)
+-  set(CMAKE_POLICY_DEFAULT_CMP0063 NEW) # automatic when 3.3.2 is required
+-endif()
+-
+ if (CMAKE_VERSION VERSION_LESS 3.1.20141117)
+   set(cmake_3_2_USES_TERMINAL)
+ else()
+diff --git a/kstool/CMakeLists.txt b/kstool/CMakeLists.txt
+index d28da481..25113821 100644
+--- a/kstool/CMakeLists.txt
++++ b/kstool/CMakeLists.txt
+@@ -1,7 +1,7 @@
+ # Kstool for Keystone assembler engine.
+ # By Nguyen Anh Quynh, 2016
+ 
+-cmake_minimum_required(VERSION 2.8)
++cmake_minimum_required(VERSION 3.10.0)
+ 
+ project(kstool)
+ 
+diff --git a/llvm/CMakeLists.txt b/llvm/CMakeLists.txt
+index d926b082..518613a5 100644
+--- a/llvm/CMakeLists.txt
++++ b/llvm/CMakeLists.txt
+@@ -1,6 +1,6 @@
+ # See docs/CMake.html for instructions about how to build LLVM with CMake.
+ 
+-cmake_minimum_required(VERSION 2.8.7)
++cmake_minimum_required(VERSION 3.10.0)
+ 
+ set(LLVM_INSTALL_TOOLCHAIN_ONLY ON)
+ 
+@@ -9,19 +9,6 @@ if (NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+   set(CMAKE_BUILD_TYPE "Debug")
+ endif()
+ 
+-if(POLICY CMP0022)
+-  cmake_policy(SET CMP0022 NEW) # automatic when 2.8.12 is required
+-endif()
+-
+-if (POLICY CMP0051)
+-  # CMake 3.1 and higher include generator expressions of the form
+-  # $<TARGETLIB:obj> in the SOURCES property.  These need to be
+-  # stripped everywhere that access the SOURCES property, so we just
+-  # defer to the OLD behavior of not including generator expressions
+-  # in the output for now.
+-  cmake_policy(SET CMP0051 OLD)
+-endif()
+-
+ if(CMAKE_VERSION VERSION_LESS 3.1.20141117)
+   set(cmake_3_2_USES_TERMINAL)
+ else()
diff --git a/pkgs/by-name/ke/keystone/gcc15.patch b/pkgs/by-name/ke/keystone/gcc15.patch
new file mode 100644
index 000000000000..8eea12702d59
--- /dev/null
+++ b/pkgs/by-name/ke/keystone/gcc15.patch
@@ -0,0 +1,23 @@
+From 41197bc85d6b95de3345f5a09d321469c2bba58e Mon Sep 17 00:00:00 2001
+From: Jordan Moore <lockbox@struct.foo>
+Date: Mon, 2 Jun 2025 16:36:27 -0400
+Subject: [PATCH] fix: cstdint explicitly included when used
+
+* fixes error in gcc15 where this header is no longer
+  implicitly included
+---
+ llvm/include/llvm/ADT/STLExtras.h | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/llvm/include/llvm/ADT/STLExtras.h b/llvm/include/llvm/ADT/STLExtras.h
+index 3346de9382c42274fc9e5fb4ba6334852c7c06fc..a2adf8533e23c782147d34ca97c222b32adcc61d 100644
+--- a/llvm/include/llvm/ADT/STLExtras.h
++++ b/llvm/include/llvm/ADT/STLExtras.h
+@@ -21,6 +21,7 @@
+ #include <algorithm> // for std::all_of
+ #include <cassert>
+ #include <cstddef> // for std::size_t
++#include <cstdint>
+ #include <cstdlib> // for qsort
+ #include <functional>
+ #include <iterator>
diff --git a/pkgs/by-name/ke/keystone/package.nix b/pkgs/by-name/ke/keystone/package.nix
index 234c05d905d7..39c86a25149c 100644
--- a/pkgs/by-name/ke/keystone/package.nix
+++ b/pkgs/by-name/ke/keystone/package.nix
@@ -19,6 +19,12 @@ stdenv.mkDerivation rec {
     sha256 = "020d1l1aqb82g36l8lyfn2j8c660mm6sh1nl4haiykwgdl9xnxfa";
   };
 
+  patches = [
+    # Patches from https://github.com/keystone-engine/keystone/pull/593
+    ./gcc15.patch
+    ./cmake-3.10.patch
+  ];
+
   cmakeFlags = [
     "-DBUILD_SHARED_LIBS=ON"
     "-DCMAKE_INSTALL_LIBDIR=lib"