The official eggdrop Docker images before 1.8.4rc2 contain a blank password for a root user. Systems using the Eggdrop Docker container deployed by affected versions of the Docker image may allow an remote attacker to achieve root access with a blank password.

mod/server.mod/servmsg.c in Eggheads Eggdrop and Windrop 1.6.19 and earlier allows remote attackers to cause a denial of service (crash) via a crafted PRIVMSG that causes an empty string to trigger a negative string length copy. NOTE: this issue exists because of an incorrect fix for CVE-2007-2807.

Stack-based buffer overflow in mod/server.mod/servrmsg.c in Eggdrop 1.6.18, and possibly earlier, allows user-assisted, remote IRC servers to execute arbitrary code via a long private message.

Share.mod in Eggheads Eggdrop IRC bot 1.6.10 through 1.6.15 can mistakenly assign STAT_OFFERED status to a bot that is not a sharebot, which allows remote attackers to use STAT_OFFERED to promote a bot to a sharebot and conduct unauthorized activities.