diff --git a/tests/suites/test_suite_pkparse.data b/tests/suites/test_suite_pkparse.data
index 416f9dfe4..e420fb04e 100644
--- a/tests/suites/test_suite_pkparse.data
+++ b/tests/suites/test_suite_pkparse.data
@@ -486,3 +486,6 @@ pk_parse_key_rsa:"301c02010002010102010102010102010102010102010102010102010100":
 
 Key ASN1 (RSAPrivateKey, values present, check_privkey fails)
 pk_parse_key_rsa:"301b020100020102020101020101020101020101020101020101020101":"":MBEDTLS_ERR_PK_KEY_INVALID_FORMAT
+
+Key ASN1 (heap-buffer-overflow, unchecked access of tag)
+pk_parse_key_rsa:"30070201010400a000":"":MBEDTLS_ERR_PK_KEY_INVALID_FORMAT