diff --git a/change/react-native-windows-c50e7256-4b11-4efc-87e2-9141b010dee9.json b/change/react-native-windows-c50e7256-4b11-4efc-87e2-9141b010dee9.json
new file mode 100644
index 00000000000..292b4beea76
--- /dev/null
+++ b/change/react-native-windows-c50e7256-4b11-4efc-87e2-9141b010dee9.json
@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "Validate arguements for OriginPolicyHttpFilter",
+  "packageName": "react-native-windows",
+  "email": "66076509+vineethkuttan@users.noreply.github.com",
+  "dependentChangeType": "patch"
+}
\ No newline at end of file
diff --git a/vnext/Shared/Networking/OriginPolicyHttpFilter.cpp b/vnext/Shared/Networking/OriginPolicyHttpFilter.cpp
index 4ae3c1a47be..689f01735f3 100644
--- a/vnext/Shared/Networking/OriginPolicyHttpFilter.cpp
+++ b/vnext/Shared/Networking/OriginPolicyHttpFilter.cpp
@@ -43,6 +43,13 @@ namespace Microsoft::React::Networking {
 #pragma region CaseInsensitiveComparer
 
 bool OriginPolicyHttpFilter::CaseInsensitiveComparer::operator()(const wchar_t *a, const wchar_t *b) const {
+  if (a == b)
+    return false;
+  // Validate a, b before calling _wcsicmp
+  if (a == nullptr)
+    return false;
+  if (b == nullptr)
+    return true;
   return _wcsicmp(a, b) < 0;
 }