diff --git a/include/mbedtls/error.h b/include/mbedtls/error.h
index 4602120..989d31e 100644
--- a/include/mbedtls/error.h
+++ b/include/mbedtls/error.h
@@ -102,8 +102,8 @@
  * SSL       5   2 (Started from 0x5F00)
  * CIPHER    6   8 (Started from 0x6080)
  * SSL       6   24 (Started from top, plus 0x6000)
- * SSL       7   28 (Started from 0x7080, gaps at
- *                   0x7500, 0x7580, 0x7B80, 0x7C80)
+ * SSL       7   27 (Started from 0x7080, gaps at
+ *                   0x7500, 0x7580, 0x7B80, 0x7C00, 0x7C80)
  *
  * Module dependent error code (5 bits 0x.00.-0x.F8.)
  */
diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h
index 7a70185..e067cde 100644
--- a/include/mbedtls/ssl.h
+++ b/include/mbedtls/ssl.h
@@ -86,7 +86,7 @@
 #define MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST        -0x7A80  /**< Processing of the CertificateRequest handshake message failed. */
 #define MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE        -0x7B00  /**< Processing of the ServerKeyExchange handshake message failed. */
 /* Error space gap */
-#define MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE        -0x7C00  /**< Processing of the ClientKeyExchange handshake message failed. */
+/* Error space gap */
 /* Error space gap */
 #define MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS     -0x7D00  /**< Processing of the ClientKeyExchange handshake message failed in DHM / ECDH Calculate Secret. */
 #define MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY         -0x7D80  /**< Processing of the CertificateVerify handshake message failed. */
diff --git a/library/ssl_srv.c b/library/ssl_srv.c
index 36281c9..8facacf 100644
--- a/library/ssl_srv.c
+++ b/library/ssl_srv.c
@@ -3389,7 +3389,7 @@
     if( *p + 2 > end )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
+        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
     }
 
     n = ( (*p)[0] << 8 ) | (*p)[1];
@@ -3398,7 +3398,7 @@
     if( *p + n > end )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
+        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
     }
 
     if( ( ret = mbedtls_dhm_read_public( &ssl->handshake->dhm_ctx, *p, n ) ) != 0 )
@@ -3466,20 +3466,20 @@
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
     if ( p + 2 > end ) {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
+        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
     }
     if( *p++ != ( ( len >> 8 ) & 0xFF ) ||
         *p++ != ( ( len      ) & 0xFF ) )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
+        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
     }
 #endif
 
     if( p + len != end )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
+        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
     }
 
     /*
@@ -3640,7 +3640,7 @@
     if( end - *p < 2 )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
+        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
     }
 
     n = ( (*p)[0] << 8 ) | (*p)[1];
@@ -3649,7 +3649,7 @@
     if( n == 0 || n > end - *p )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
+        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
     }
 
     if( ssl->conf->f_psk != NULL )
@@ -3718,13 +3718,13 @@
     if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
+        return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
     }
 
     if( ssl->in_msg[0] != MBEDTLS_SSL_HS_CLIENT_KEY_EXCHANGE )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
+        return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
     }
 
 #if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)
@@ -3739,7 +3739,7 @@
         if( p != end )
         {
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange" ) );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
+            return( MBEDTLS_ERR_SSL_DECODE_ERROR );
         }
 
         if( ( ret = mbedtls_dhm_calc_secret( &ssl->handshake->dhm_ctx,
@@ -3805,7 +3805,7 @@
         if( p != end )
         {
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange" ) );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
+            return( MBEDTLS_ERR_SSL_DECODE_ERROR );
         }
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
@@ -3890,7 +3890,7 @@
         if( p != end )
         {
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange" ) );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
+            return( MBEDTLS_ERR_SSL_DECODE_ERROR );
         }
 
         if( ( ret = mbedtls_ssl_psk_derive_premaster( ssl,