diff --git a/module/transport/src/mod_transport.c b/module/transport/src/mod_transport.c
index 30727ad301f92142cc6872f859eee4c86430a9c0..9a435ac02fd258ded093053c82fd900e2c0f4947 100644
--- a/module/transport/src/mod_transport.c
+++ b/module/transport/src/mod_transport.c
@@ -454,6 +454,29 @@ static int transport_release_channel_lock(fwk_id_t channel_id)
      * transport_respond() function that releases the channel context.
      */
     channel_ctx->locked = false;
+
+    if (channel_ctx->config->transport_type ==
+            MOD_TRANSPORT_CHANNEL_TRANSPORT_TYPE_OUT_BAND) {
+        /*
+         * For Out-of-band communication channels:
+         * After processing a message, unlock the shared buffer memory by
+         * marking it as free, so that other applications can reuse it.
+         * This enusures proper buffer management and prevents the
+         * resource leaks.
+         */
+        struct mod_transport_buffer *buffer = NULL;
+        buffer = ((struct mod_transport_buffer *)
+                     channel_ctx->config->out_band_mailbox_address);
+
+        if (buffer == NULL) {
+            FWK_LOG_ERR(
+                "%s ERROR: NULL buffer in \"%s()\"", MOD_NAME, __func__);
+            return FWK_E_PANIC;
+        }
+
+        buffer->status |= MOD_TRANSPORT_MAILBOX_STATUS_FREE_MASK;
+    }
+
     return FWK_SUCCESS;
 }