CVE-2021-3466: libmicrohttpd: Buffer overflow issue in URL parser in the post_process_urlencoded function

Severity: Critical

CVSS Score: 9.8

A flaw was found in libmicrohttpd. A missing bounds check in the post_process_urlencoded function leads to a buffer overflow, allowing a remote attacker to write arbitrary data in an application that uses libmicrohttpd. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Only version 0.9.70 is vulnerable.