The ABB IDAL HTTP server is vulnerable to a buffer overflow when a long Host header is sent in a web request. The Host header value overflows a buffer and overwrites a Structured Exception Handler (SEH) address. An unauthenticated attacker can submit a Host header value of 2047 bytes or more to overflow the buffer and overwrite the SEH address, which can then be leveraged to execute attacker-controlled code on the server.
packetstormsecurity.com/files/153403/ABB-IDAL-HTTP-Server-Stack-Based-Buffer-Overflow.html
seclists.org/fulldisclosure/2019/Jun/40
www.securityfocus.com/bid/108886
search.abb.com/library/Download.aspx?DocumentID=3ADR010377&LanguageCode=en&DocumentPartId=&Action=Launch
www.darkmatter.ae/xen1thlabs/published-advisories/