CVE-2019-16928: exim: remotely triggerable buffer overflow in string_vformat()

Severity: Critical

CVSS Score: 9.8

Exim 4.92 through 4.92.2 allows remote code execution, a different vulnerability than CVE-2019-15846. There is a heap-based buffer overflow in string_vformat in string.c involving a long EHLO command.