Squid before 2.3STABLE5 in HTTP accelerator mode does not enable access control lists (ACLs) when the httpd_accel_host and http_accel_with_proxy off settings are used, which allows attackers to bypass the ACLs and conduct unauthorized activities such as port scanning.

ping in iputils before 20001010, as distributed on Red Hat Linux 6.2 through 7J and other operating systems, does not drop privileges after acquiring a raw socket, which increases ping's exposure to bugs that otherwise would occur at lower privileges.

Buffer overflow in url_filename function for wget 1.8.1 allows attackers to cause a denial of service (segmentation fault) and possibly execute arbitrary code via a long URL.

Format string vulnerability in Mutt before 1.2.5 allows a remote malicious IMAP server to execute arbitrary commands.