SCO : Security Vulnerabilities, CVEs, (Overflow) CVSS score >= 9

Buffer overflow in login in various System V based operating systems allows remote attackers to execute arbitrary commands via a large number of arguments through services such as telnet and rlogin.

Buffer overflow in calserver in SCO OpenServer allows remote attackers to gain root access via a long message.

Buffer overflow in UnixWare i2odialogd daemon allows remote attackers to gain root access via a long username/password authorization string.

Buffer overflow in UnixWare rtpm program allows local users to gain privileges via a long environmental variable.

Buffer overflow in bootpd on OpenBSD, FreeBSD, and Linux systems via a malformed header type.

Inverse query buffer overflow in BIND 4.9 and BIND 8 Releases.