Apple has in its popular Mac OS 10.3.9 (Panther)
and 10.4.2 (Tiger)
operating systems. Only a few of the flaws are considered critical, such as those involving AppKit and the Web browser Safari. Attacks affecting these apps could allow a remote attacker to run malicious code on a vulnerable system. Other critical flaws that could also allow remote attacks, such as those affecting Apache 2, are not seen as critical, since Apple did not enable this feature by default.