The _CFNetConnectionWillEnqueueRequests function in CFNetwork 129.19 on Apple Mac OS X 10.4 through 10.4.10 allows remote attackers to cause a denial of service (application crash) via a crafted HTTP 301 response, which results in a NULL pointer dereference.

CFNetwork on Apple Mac OS X 10.3.9 and 10.4.10 does not properly validate ftp: URIs, which allows remote attackers to trigger the transmission of arbitrary FTP commands to arbitrary FTP servers.

CFNetwork in Apple Safari before 5.0.6 on Windows allows remote web servers to execute arbitrary code by replaying the NTLM credentials of a client user, related to a "credential reflection" issue.

Cross-site scripting (XSS) vulnerability in CFNetwork in Apple Safari before 5.0.6 allows remote attackers to inject arbitrary web script or HTML via a crafted text/plain file.

CFNetwork in Apple Mac OS X 10.6.3 and 10.6.4 supports anonymous SSL and TLS connections, which allows man-in-the-middle attackers to redirect a connection and obtain sensitive information via crafted responses.

CFNetwork in Apple Safari before 5.0.6 on Windows does not properly handle an untrusted attribute of a system root certificate, which allows remote web servers to bypass intended SSL restrictions via a certificate signed by a blacklisted certification authority.