Buffer overflow in IBM Informix 11.50 through 11.50.xC9W2 and 11.70 before 11.70.xC7 allows remote authenticated users to execute arbitrary code via a crafted SQL statement.
https://www.ibm.com/support/docview.wss?uid=swg21618994
https://exchange.xforce.ibmcloud.com/vulnerabilities/79737