diff --git a/wolfcrypt/src/ecc.c b/wolfcrypt/src/ecc.c
index 7cc00d9f9..eadec7cc8 100644
--- a/wolfcrypt/src/ecc.c
+++ b/wolfcrypt/src/ecc.c
@@ -10125,6 +10125,9 @@ static int wc_ecc_import_raw_private(ecc_key* key, const char* qx,
             WOLFSSL_MSG("Invalid Qx");
             err = BAD_FUNC_ARG;
         }
+        if (mp_unsigned_bin_size(key->pubkey.y) > key->dp->size) {
+            err = BAD_FUNC_ARG;
+        }
     }
 
     /* read Qy */
@@ -10139,6 +10142,9 @@ static int wc_ecc_import_raw_private(ecc_key* key, const char* qx,
             WOLFSSL_MSG("Invalid Qy");
             err = BAD_FUNC_ARG;
         }
+        if (mp_unsigned_bin_size(key->pubkey.y) > key->dp->size) {
+            err = BAD_FUNC_ARG;
+        }
     }
 
     if (err == MP_OKAY) {
@@ -13735,6 +13741,9 @@ static int wc_ecc_export_x963_compressed(ecc_key* key, byte* out, word32* outLen
    if (out == NULL)
        return BAD_FUNC_ARG;
 
+   if (mp_unsigned_bin_size(key->pubkey.x) > (int)numlen)
+       return ECC_BAD_ARG_E;
+
    /* store first byte */
    out[0] = mp_isodd(key->pubkey.y) == MP_YES ? ECC_POINT_COMP_ODD : ECC_POINT_COMP_EVEN;