Multiple TCP implementations with Protection Against Wrapped Sequence Numbers (PAWS) with the timestamps option enabled allow remote attackers to cause a denial of service (connection loss) via a spoofed packet with a large timer value, which causes the host to discard later packets because they appear to be too old.

Buffer overflow in Microsoft FrontPage Server Extensions (PWS) 3.0.2.926 on Windows 95, and possibly other versions, allows remote attackers to cause a denial of service via a long URL.