CVE-2021-22945
When sending data to an MQTT server, libcurl <= 7.73.0 and 7.78.0 could in some circumstances erroneously keep a pointer to an already freed memory area and both use that again in a subsequent call to send data and also free it *again*. Date published : 2021-09-23 https://security.netapp.com/advisory/ntap-20211029-0003/