snmpd in SCO OpenServer has an SNMP community string that is writable by default, which allows local attackers to modify the host's configuration.

DNS cache poisoning via BIND, by predictable query IDs.

Denial of Service vulnerabilities in BIND 4.9 and BIND 8 Releases via CNAME record and zone transfer.

Delete or create a file via rpc.statd, due to invalid information.

Local user gains root privileges via buffer overflow in rdist, via lookup() function.

Jolt ICMP attack causes a denial of service in Windows 95 and Windows NT systems.

Sendmail decode alias can be used to overwrite sensitive files.

Several startup scripts in SCO OpenServer Enterprise System v 5.0.4p, including S84rpcinit, S95nis, S85tcp, and S89nfs, are vulnerable to a symlink attack, allowing a local user to gain root access.

Oversized ICMP ping packets can result in a denial of service, aka Ping o' Death.

Sendmail allows local users to write to a file and gain group permissions via a .forward or :include: file.

Buffer overflow and denial of service in Sendmail 8.7.5 and earlier through GECOS field gives root access to local users.

Windows 95/NT out of band (OOB) data denial of service through NETBIOS port, aka WinNuke.

pcnfsd (aka rpc.pcnfsd) allows local users to change file permissions, or execute arbitrary commands through arguments in the RPC call.

Buffer overflows in wuarchive ftpd (wu-ftpd) and ProFTPD lead to remote root access, a.k.a. palmetto.

FTP servers can allow an attacker to connect to arbitrary ports on machines other than the FTP client, aka FTP bounce.

A weak encryption algorithm is used for passwords in SCO TermVision, allowing them to be easily decrypted by a local user.

SCO Doctor allows local users to gain root privileges through a Tools option.

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

Denial of service in BIND named via malformed SIG records.

Denial of Service vulnerability in BIND 8 Releases via maliciously formatted DNS messages.