diff --git a/homeassistant/components/foscam/camera.py b/homeassistant/components/foscam/camera.py
index 353c7397d81..f95650853a0 100644
--- a/homeassistant/components/foscam/camera.py
+++ b/homeassistant/components/foscam/camera.py
@@ -3,6 +3,7 @@
 from __future__ import annotations
 
 import asyncio
+from urllib.parse import quote
 
 import voluptuous as vol
 
@@ -152,7 +153,9 @@ class HassFoscamCamera(FoscamEntity, Camera):
     async def stream_source(self) -> str | None:
         """Return the stream source."""
         if self._rtsp_port:
-            return f"rtsp://{self._username}:{self._password}@{self._foscam_session.host}:{self._rtsp_port}/video{self._stream}"
+            _username = quote(self._username)
+            _password = quote(self._password)
+            return f"rtsp://{_username}:{_password}@{self._foscam_session.host}:{self._rtsp_port}/video{self._stream}"
 
         return None