diff --git a/NEWS b/NEWS
index c2ec09c0051..d80da988e39 100644
--- a/NEWS
+++ b/NEWS
@@ -2,6 +2,10 @@ PHP                                                                        NEWS
 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 ?? ??? ????, PHP 8.4.0RC4
 
+- Core:
+  . Fixed bug GH-16574 (Incorrect error "undefined method" messages).
+    (nielsdos)
+
 - GD:
   . Fixed bug GH-16559 (UBSan abort in ext/gd/libgd/gd_interpolation.c:1007).
     (nielsdos)
diff --git a/Zend/zend_vm_def.h b/Zend/zend_vm_def.h
index 7263c6eef6d..0eb81087856 100644
--- a/Zend/zend_vm_def.h
+++ b/Zend/zend_vm_def.h
@@ -3625,7 +3625,7 @@ ZEND_VM_HOT_OBJ_HANDLER(112, ZEND_INIT_METHOD_CALL, CONST|TMPVAR|UNUSED|THIS|CV,
 		fbc = obj->handlers->get_method(&obj, Z_STR_P(function_name), ((OP2_TYPE == IS_CONST) ? (RT_CONSTANT(opline, opline->op2) + 1) : NULL));
 		if (UNEXPECTED(fbc == NULL)) {
 			if (EXPECTED(!EG(exception))) {
-				zend_undefined_method(obj->ce, Z_STR_P(function_name));
+				zend_undefined_method(orig_obj->ce, Z_STR_P(function_name));
 			}
 			FREE_OP2();
 			if ((OP1_TYPE & (IS_VAR|IS_TMP_VAR)) && GC_DELREF(orig_obj) == 0) {
diff --git a/Zend/zend_vm_execute.h b/Zend/zend_vm_execute.h
index f0ecc76bbbc..274f92456d2 100644
--- a/Zend/zend_vm_execute.h
+++ b/Zend/zend_vm_execute.h
@@ -7209,7 +7209,7 @@ static ZEND_VM_COLD ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL ZEND_INIT_METHOD_CALL_
 		fbc = obj->handlers->get_method(&obj, Z_STR_P(function_name), ((IS_CONST == IS_CONST) ? (RT_CONSTANT(opline, opline->op2) + 1) : NULL));
 		if (UNEXPECTED(fbc == NULL)) {
 			if (EXPECTED(!EG(exception))) {
-				zend_undefined_method(obj->ce, Z_STR_P(function_name));
+				zend_undefined_method(orig_obj->ce, Z_STR_P(function_name));
 			}
 
 			if ((IS_CONST & (IS_VAR|IS_TMP_VAR)) && GC_DELREF(orig_obj) == 0) {
@@ -9773,7 +9773,7 @@ static ZEND_VM_COLD ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL ZEND_INIT_METHOD_CALL_
 		fbc = obj->handlers->get_method(&obj, Z_STR_P(function_name), (((IS_TMP_VAR|IS_VAR) == IS_CONST) ? (RT_CONSTANT(opline, opline->op2) + 1) : NULL));
 		if (UNEXPECTED(fbc == NULL)) {
 			if (EXPECTED(!EG(exception))) {
-				zend_undefined_method(obj->ce, Z_STR_P(function_name));
+				zend_undefined_method(orig_obj->ce, Z_STR_P(function_name));
 			}
 			zval_ptr_dtor_nogc(EX_VAR(opline->op2.var));
 			if ((IS_CONST & (IS_VAR|IS_TMP_VAR)) && GC_DELREF(orig_obj) == 0) {
@@ -12255,7 +12255,7 @@ static ZEND_VM_COLD ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL ZEND_INIT_METHOD_CALL_
 		fbc = obj->handlers->get_method(&obj, Z_STR_P(function_name), ((IS_CV == IS_CONST) ? (RT_CONSTANT(opline, opline->op2) + 1) : NULL));
 		if (UNEXPECTED(fbc == NULL)) {
 			if (EXPECTED(!EG(exception))) {
-				zend_undefined_method(obj->ce, Z_STR_P(function_name));
+				zend_undefined_method(orig_obj->ce, Z_STR_P(function_name));
 			}
 
 			if ((IS_CONST & (IS_VAR|IS_TMP_VAR)) && GC_DELREF(orig_obj) == 0) {
@@ -16648,7 +16648,7 @@ static ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL ZEND_INIT_METHOD_CALL_SPEC_TMPVAR_C
 		fbc = obj->handlers->get_method(&obj, Z_STR_P(function_name), ((IS_CONST == IS_CONST) ? (RT_CONSTANT(opline, opline->op2) + 1) : NULL));
 		if (UNEXPECTED(fbc == NULL)) {
 			if (EXPECTED(!EG(exception))) {
-				zend_undefined_method(obj->ce, Z_STR_P(function_name));
+				zend_undefined_method(orig_obj->ce, Z_STR_P(function_name));
 			}
 
 			if (((IS_TMP_VAR|IS_VAR) & (IS_VAR|IS_TMP_VAR)) && GC_DELREF(orig_obj) == 0) {
@@ -18141,7 +18141,7 @@ static ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL ZEND_INIT_METHOD_CALL_SPEC_TMPVAR_T
 		fbc = obj->handlers->get_method(&obj, Z_STR_P(function_name), (((IS_TMP_VAR|IS_VAR) == IS_CONST) ? (RT_CONSTANT(opline, opline->op2) + 1) : NULL));
 		if (UNEXPECTED(fbc == NULL)) {
 			if (EXPECTED(!EG(exception))) {
-				zend_undefined_method(obj->ce, Z_STR_P(function_name));
+				zend_undefined_method(orig_obj->ce, Z_STR_P(function_name));
 			}
 			zval_ptr_dtor_nogc(EX_VAR(opline->op2.var));
 			if (((IS_TMP_VAR|IS_VAR) & (IS_VAR|IS_TMP_VAR)) && GC_DELREF(orig_obj) == 0) {
@@ -19548,7 +19548,7 @@ static ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL ZEND_INIT_METHOD_CALL_SPEC_TMPVAR_C
 		fbc = obj->handlers->get_method(&obj, Z_STR_P(function_name), ((IS_CV == IS_CONST) ? (RT_CONSTANT(opline, opline->op2) + 1) : NULL));
 		if (UNEXPECTED(fbc == NULL)) {
 			if (EXPECTED(!EG(exception))) {
-				zend_undefined_method(obj->ce, Z_STR_P(function_name));
+				zend_undefined_method(orig_obj->ce, Z_STR_P(function_name));
 			}
 
 			if (((IS_TMP_VAR|IS_VAR) & (IS_VAR|IS_TMP_VAR)) && GC_DELREF(orig_obj) == 0) {
@@ -34934,7 +34934,7 @@ static ZEND_VM_HOT ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL ZEND_INIT_METHOD_CALL_S
 		fbc = obj->handlers->get_method(&obj, Z_STR_P(function_name), ((IS_CONST == IS_CONST) ? (RT_CONSTANT(opline, opline->op2) + 1) : NULL));
 		if (UNEXPECTED(fbc == NULL)) {
 			if (EXPECTED(!EG(exception))) {
-				zend_undefined_method(obj->ce, Z_STR_P(function_name));
+				zend_undefined_method(orig_obj->ce, Z_STR_P(function_name));
 			}
 
 			if ((IS_UNUSED & (IS_VAR|IS_TMP_VAR)) && GC_DELREF(orig_obj) == 0) {
@@ -37103,7 +37103,7 @@ static ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL ZEND_INIT_METHOD_CALL_SPEC_UNUSED_T
 		fbc = obj->handlers->get_method(&obj, Z_STR_P(function_name), (((IS_TMP_VAR|IS_VAR) == IS_CONST) ? (RT_CONSTANT(opline, opline->op2) + 1) : NULL));
 		if (UNEXPECTED(fbc == NULL)) {
 			if (EXPECTED(!EG(exception))) {
-				zend_undefined_method(obj->ce, Z_STR_P(function_name));
+				zend_undefined_method(orig_obj->ce, Z_STR_P(function_name));
 			}
 			zval_ptr_dtor_nogc(EX_VAR(opline->op2.var));
 			if ((IS_UNUSED & (IS_VAR|IS_TMP_VAR)) && GC_DELREF(orig_obj) == 0) {
@@ -39748,7 +39748,7 @@ static ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL ZEND_INIT_METHOD_CALL_SPEC_UNUSED_C
 		fbc = obj->handlers->get_method(&obj, Z_STR_P(function_name), ((IS_CV == IS_CONST) ? (RT_CONSTANT(opline, opline->op2) + 1) : NULL));
 		if (UNEXPECTED(fbc == NULL)) {
 			if (EXPECTED(!EG(exception))) {
-				zend_undefined_method(obj->ce, Z_STR_P(function_name));
+				zend_undefined_method(orig_obj->ce, Z_STR_P(function_name));
 			}
 
 			if ((IS_UNUSED & (IS_VAR|IS_TMP_VAR)) && GC_DELREF(orig_obj) == 0) {
@@ -44864,7 +44864,7 @@ static ZEND_VM_HOT ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL ZEND_INIT_METHOD_CALL_S
 		fbc = obj->handlers->get_method(&obj, Z_STR_P(function_name), ((IS_CONST == IS_CONST) ? (RT_CONSTANT(opline, opline->op2) + 1) : NULL));
 		if (UNEXPECTED(fbc == NULL)) {
 			if (EXPECTED(!EG(exception))) {
-				zend_undefined_method(obj->ce, Z_STR_P(function_name));
+				zend_undefined_method(orig_obj->ce, Z_STR_P(function_name));
 			}
 
 			if ((IS_CV & (IS_VAR|IS_TMP_VAR)) && GC_DELREF(orig_obj) == 0) {
@@ -48758,7 +48758,7 @@ static ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL ZEND_INIT_METHOD_CALL_SPEC_CV_TMPVA
 		fbc = obj->handlers->get_method(&obj, Z_STR_P(function_name), (((IS_TMP_VAR|IS_VAR) == IS_CONST) ? (RT_CONSTANT(opline, opline->op2) + 1) : NULL));
 		if (UNEXPECTED(fbc == NULL)) {
 			if (EXPECTED(!EG(exception))) {
-				zend_undefined_method(obj->ce, Z_STR_P(function_name));
+				zend_undefined_method(orig_obj->ce, Z_STR_P(function_name));
 			}
 			zval_ptr_dtor_nogc(EX_VAR(opline->op2.var));
 			if ((IS_CV & (IS_VAR|IS_TMP_VAR)) && GC_DELREF(orig_obj) == 0) {
@@ -54353,7 +54353,7 @@ static ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL ZEND_INIT_METHOD_CALL_SPEC_CV_CV_HA
 		fbc = obj->handlers->get_method(&obj, Z_STR_P(function_name), ((IS_CV == IS_CONST) ? (RT_CONSTANT(opline, opline->op2) + 1) : NULL));
 		if (UNEXPECTED(fbc == NULL)) {
 			if (EXPECTED(!EG(exception))) {
-				zend_undefined_method(obj->ce, Z_STR_P(function_name));
+				zend_undefined_method(orig_obj->ce, Z_STR_P(function_name));
 			}
 
 			if ((IS_CV & (IS_VAR|IS_TMP_VAR)) && GC_DELREF(orig_obj) == 0) {
diff --git a/ext/spl/tests/gh16574.phpt b/ext/spl/tests/gh16574.phpt
new file mode 100644
index 00000000000..0bcc6611a22
--- /dev/null
+++ b/ext/spl/tests/gh16574.phpt
@@ -0,0 +1,15 @@
+--TEST--
+GH-16574 (Incorrect error "undefined method" messages)
+--CREDITS--
+YuanchengJiang
+--FILE--
+<?php
+$i = new ArrayIterator([1,1,1,1,1]);
+$i = new CachingIterator($i, CachingIterator::FULL_CACHE);
+$i->doesnotexist("x");
+?>
+--EXPECTF--
+Fatal error: Uncaught Error: Call to undefined method CachingIterator::doesnotexist() in %s:%d
+Stack trace:
+#0 {main}
+  thrown in %s on line %d