diff --git a/tests/osaka/eip7692_eof_v1/eip3540_eof_v1/test_extcode.py b/tests/osaka/eip7692_eof_v1/eip3540_eof_v1/test_extcode.py
index eb5dc99dda..c854fa34a9 100644
--- a/tests/osaka/eip7692_eof_v1/eip3540_eof_v1/test_extcode.py
+++ b/tests/osaka/eip7692_eof_v1/eip3540_eof_v1/test_extcode.py
@@ -23,15 +23,15 @@ def test_legacy_calls_eof_sstore(
 ):
     """Test EXTCODE* opcodes calling EOF and legacy contracts"""
     env = Environment()
-    address_eof_contract = pre.deploy_contract(
-        Container(
-            sections=[
-                Section.Code(
-                    code=Op.RJUMP[0] + Op.STOP,
-                )
-            ]
-        )
+    eof_code = Container(
+        sections=[
+            Section.Code(
+                code=Op.RJUMP[0] + Op.STOP,
+            )
+        ]
     )
+    assert len(eof_code) == 23
+    address_eof_contract = pre.deploy_contract(eof_code)
     legacy_code = Op.PUSH1(2) + Op.JUMPDEST + Op.STOP
     address_legacy_contract = pre.deploy_contract(legacy_code)
 
@@ -50,6 +50,9 @@ def test_legacy_calls_eof_sstore(
         + Op.SSTORE(storage_test.store_next(2), Op.EXTCODESIZE(address_eof_contract))
         + Op.EXTCODECOPY(address_eof_contract, 0x20, 0, 6)
         + Op.SSTORE(storage_test.store_next(b"\xef" + (b"\0" * 31)), Op.MLOAD(0x20))
+        + Op.MSTORE(0x40, b"\xcc" * 32)  # clobber memory slot
+        + Op.EXTCODECOPY(address_eof_contract, 0x40, len(eof_code) - 4, 8)  # out-of-bounds "read"
+        + Op.SSTORE(storage_test.store_next(b"\xcc" * 24), Op.MLOAD(0x40))
         + Op.SSTORE(
             storage_test.store_next(keccak256(b"\xef\x00")),
             Op.EXTCODEHASH(address_eof_contract),
diff --git a/tests/osaka/eip7692_eof_v1/eof_tracker.md b/tests/osaka/eip7692_eof_v1/eof_tracker.md
index e8ee5d1794..61a8d87009 100644
--- a/tests/osaka/eip7692_eof_v1/eof_tracker.md
+++ b/tests/osaka/eip7692_eof_v1/eof_tracker.md
@@ -82,9 +82,9 @@
 ### Execution
 
 - [ ] Execution of EOF contracts (ethereum/tests: src/EIPTestsFiller/StateTests/stEOF/stEIP3540/EOF1_ExecutionFiller.yml)
-- [ ] Legacy executing EXTCODESIZE of EOF contract (ethereum/tests: src/EIPTestsFiller/StateTests/stEOF/stEIP3540/EOF1_ExecutionFiller.yml)
-- [ ] Legacy executing EXTCODEHASH of EOF contract (ethereum/tests: src/EIPTestsFiller/StateTests/stEOF/stEIP3540/EOF1_ExecutionFiller.yml)
-- [ ] Legacy executing EXTCODECOPY of EOF contract (ethereum/tests: src/EIPTestsFiller/StateTests/stEOF/stEIP3540/EOF1_ExecutionFiller.yml)
+- [x] Legacy executing EXTCODESIZE of EOF contract ([`tests/osaka/eip7692_eof_v1/eip3540_eof_v1/test_extcode.py::test_legacy_calls_eof_sstore`](./eip3540_eof_v1/test_extcode/test_legacy_calls_eof_sstore.md))
+- [x] Legacy executing EXTCODEHASH of EOF contract ([`tests/osaka/eip7692_eof_v1/eip3540_eof_v1/test_extcode.py::test_legacy_calls_eof_sstore`](./eip3540_eof_v1/test_extcode/test_legacy_calls_eof_sstore.md))
+- [x] Legacy executing EXTCODECOPY of EOF contract ([`tests/osaka/eip7692_eof_v1/eip3540_eof_v1/test_extcode.py::test_legacy_calls_eof_sstore`](./eip3540_eof_v1/test_extcode/test_legacy_calls_eof_sstore.md))
 - [ ] `*CALLs` from legacy contracts to EOF contracts (ethereum/tests: src/EIPTestsFiller/StateTests/stEOF/stEIP3540/EOF1_CallsFiller.yml)
 - [ ] `EXT*CALLs` from EOF to legacy contracts (ethereum/tests: src/EIPTestsFiller/StateTests/stEOF/stEIP3540/EOF1_CallsFiller.yml)
 - [ ] EXTDELEGATECALL from EOF to EOF contract (ethereum/tests: src/EIPTestsFiller/StateTests/stEOF/stEIP3540/EOF1_CallsFiller.yml)