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.

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 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.

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.