diff --git a/docs/threat_model/threat_model_fvp_r.rst b/docs/threat_model/threat_model_fvp_r.rst
index c1462bb..725eeed 100644
--- a/docs/threat_model/threat_model_fvp_r.rst
+++ b/docs/threat_model/threat_model_fvp_r.rst
@@ -90,8 +90,10 @@
       and since the MPU configuration is equivalent with that for the fvp
       platform and others, this is not expected to be a concern.
 
+    - ID 15:  Improper handling of input data received over a UART interface may
+      allow an attacker to tamper with TF-A execution environment.
 
 
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-*Copyright (c) 2021, Arm Limited. All rights reserved.*
+*Copyright (c) 2021-2023, Arm Limited. All rights reserved.*