diff --git a/homeassistant/components/onewire/onewirehub.py b/homeassistant/components/onewire/onewirehub.py
index a8d8dd06034..d65d7a90950 100644
--- a/homeassistant/components/onewire/onewirehub.py
+++ b/homeassistant/components/onewire/onewirehub.py
@@ -58,6 +58,7 @@ class OneWireHub:
 
     owproxy: protocol._Proxy
     devices: list[OWDeviceDescription]
+    _version: str
 
     def __init__(self, hass: HomeAssistant, config_entry: OneWireConfigEntry) -> None:
         """Initialize."""
@@ -73,6 +74,7 @@ class OneWireHub:
         port = self._config_entry.data[CONF_PORT]
         _LOGGER.debug("Initializing connection to %s:%s", host, port)
         self.owproxy = protocol.proxy(host, port)
+        self._version = self.owproxy.read(protocol.PTH_VERSION).decode()
         self.devices = _discover_devices(self.owproxy)
 
     async def initialize(self) -> None:
@@ -85,6 +87,7 @@ class OneWireHub:
         """Populate the device registry."""
         device_registry = dr.async_get(self._hass)
         for device in devices:
+            device.device_info["sw_version"] = self._version
             device_registry.async_get_or_create(
                 config_entry_id=self._config_entry.entry_id,
                 **device.device_info,
diff --git a/tests/components/onewire/__init__.py b/tests/components/onewire/__init__.py
index 9c025fe33af..595b660b722 100644
--- a/tests/components/onewire/__init__.py
+++ b/tests/components/onewire/__init__.py
@@ -13,7 +13,9 @@ from .const import ATTR_INJECT_READS, MOCK_OWPROXY_DEVICES
 def setup_owproxy_mock_devices(owproxy: MagicMock, device_ids: list[str]) -> None:
     """Set up mock for owproxy."""
     dir_side_effect: dict[str, list] = {}
-    read_side_effect: dict[str, list] = {}
+    read_side_effect: dict[str, list] = {
+        "/system/configuration/version": [b"3.2"],
+    }
 
     # Setup directory listing
     dir_side_effect["/"] = [[f"/{device_id}/" for device_id in device_ids]]
diff --git a/tests/components/onewire/snapshots/test_diagnostics.ambr b/tests/components/onewire/snapshots/test_diagnostics.ambr
index 6c5631331ca..c60d0a9748b 100644
--- a/tests/components/onewire/snapshots/test_diagnostics.ambr
+++ b/tests/components/onewire/snapshots/test_diagnostics.ambr
@@ -15,6 +15,7 @@
           'model_id': 'HB_HUB',
           'name': 'EF.111111111113',
           'serial_number': '111111111113',
+          'sw_version': '3.2',
         }),
         'family': 'EF',
         'id': 'EF.111111111113',
diff --git a/tests/components/onewire/snapshots/test_init.ambr b/tests/components/onewire/snapshots/test_init.ambr
index ee5d6d99158..5666dab6383 100644
--- a/tests/components/onewire/snapshots/test_init.ambr
+++ b/tests/components/onewire/snapshots/test_init.ambr
@@ -27,7 +27,7 @@
     'primary_config_entry': <ANY>,
     'serial_number': '111111111111',
     'suggested_area': None,
-    'sw_version': None,
+    'sw_version': '3.2',
     'via_device_id': None,
   })
 # ---
@@ -59,7 +59,7 @@
     'primary_config_entry': <ANY>,
     'serial_number': '111111111111',
     'suggested_area': None,
-    'sw_version': None,
+    'sw_version': '3.2',
     'via_device_id': None,
   })
 # ---
@@ -91,7 +91,7 @@
     'primary_config_entry': <ANY>,
     'serial_number': '111111111111',
     'suggested_area': None,
-    'sw_version': None,
+    'sw_version': '3.2',
     'via_device_id': None,
   })
 # ---
@@ -123,7 +123,7 @@
     'primary_config_entry': <ANY>,
     'serial_number': '111111111111',
     'suggested_area': None,
-    'sw_version': None,
+    'sw_version': '3.2',
     'via_device_id': <ANY>,
   })
 # ---
@@ -155,7 +155,7 @@
     'primary_config_entry': <ANY>,
     'serial_number': '111111111111',
     'suggested_area': None,
-    'sw_version': None,
+    'sw_version': '3.2',
     'via_device_id': None,
   })
 # ---
@@ -187,7 +187,7 @@
     'primary_config_entry': <ANY>,
     'serial_number': '111111111111',
     'suggested_area': None,
-    'sw_version': None,
+    'sw_version': '3.2',
     'via_device_id': None,
   })
 # ---
@@ -219,7 +219,7 @@
     'primary_config_entry': <ANY>,
     'serial_number': '111111111111',
     'suggested_area': None,
-    'sw_version': None,
+    'sw_version': '3.2',
     'via_device_id': None,
   })
 # ---
@@ -251,7 +251,7 @@
     'primary_config_entry': <ANY>,
     'serial_number': '111111111111',
     'suggested_area': None,
-    'sw_version': None,
+    'sw_version': '3.2',
     'via_device_id': None,
   })
 # ---
@@ -283,7 +283,7 @@
     'primary_config_entry': <ANY>,
     'serial_number': '111111111111',
     'suggested_area': None,
-    'sw_version': None,
+    'sw_version': '3.2',
     'via_device_id': None,
   })
 # ---
@@ -315,7 +315,7 @@
     'primary_config_entry': <ANY>,
     'serial_number': '222222222222',
     'suggested_area': None,
-    'sw_version': None,
+    'sw_version': '3.2',
     'via_device_id': None,
   })
 # ---
@@ -347,7 +347,7 @@
     'primary_config_entry': <ANY>,
     'serial_number': '222222222223',
     'suggested_area': None,
-    'sw_version': None,
+    'sw_version': '3.2',
     'via_device_id': None,
   })
 # ---
@@ -379,7 +379,7 @@
     'primary_config_entry': <ANY>,
     'serial_number': '111111111111',
     'suggested_area': None,
-    'sw_version': None,
+    'sw_version': '3.2',
     'via_device_id': None,
   })
 # ---
@@ -411,7 +411,7 @@
     'primary_config_entry': <ANY>,
     'serial_number': '111111111111',
     'suggested_area': None,
-    'sw_version': None,
+    'sw_version': '3.2',
     'via_device_id': None,
   })
 # ---
@@ -443,7 +443,7 @@
     'primary_config_entry': <ANY>,
     'serial_number': '111111111111',
     'suggested_area': None,
-    'sw_version': None,
+    'sw_version': '3.2',
     'via_device_id': None,
   })
 # ---
@@ -475,7 +475,7 @@
     'primary_config_entry': <ANY>,
     'serial_number': '111111111111',
     'suggested_area': None,
-    'sw_version': None,
+    'sw_version': '3.2',
     'via_device_id': None,
   })
 # ---
@@ -507,7 +507,7 @@
     'primary_config_entry': <ANY>,
     'serial_number': '111111111111',
     'suggested_area': None,
-    'sw_version': None,
+    'sw_version': '3.2',
     'via_device_id': None,
   })
 # ---
@@ -539,7 +539,7 @@
     'primary_config_entry': <ANY>,
     'serial_number': '111111111111',
     'suggested_area': None,
-    'sw_version': None,
+    'sw_version': '3.2',
     'via_device_id': None,
   })
 # ---
@@ -571,7 +571,7 @@
     'primary_config_entry': <ANY>,
     'serial_number': '222222222222',
     'suggested_area': None,
-    'sw_version': None,
+    'sw_version': '3.2',
     'via_device_id': None,
   })
 # ---
@@ -603,7 +603,7 @@
     'primary_config_entry': <ANY>,
     'serial_number': '111111111111',
     'suggested_area': None,
-    'sw_version': None,
+    'sw_version': '3.2',
     'via_device_id': None,
   })
 # ---
@@ -635,7 +635,7 @@
     'primary_config_entry': <ANY>,
     'serial_number': '111111111111',
     'suggested_area': None,
-    'sw_version': None,
+    'sw_version': '3.2',
     'via_device_id': None,
   })
 # ---
@@ -667,7 +667,7 @@
     'primary_config_entry': <ANY>,
     'serial_number': '111111111112',
     'suggested_area': None,
-    'sw_version': None,
+    'sw_version': '3.2',
     'via_device_id': None,
   })
 # ---
@@ -699,7 +699,7 @@
     'primary_config_entry': <ANY>,
     'serial_number': '111111111113',
     'suggested_area': None,
-    'sw_version': None,
+    'sw_version': '3.2',
     'via_device_id': None,
   })
 # ---