Download PuTTY 0.55 beta

PuTTY is one of the most popular telnet and SSH clients. The program is available for both Windows and Unix platforms. The developers behind this program have just released version 0.55 beta and it fixes a serious security issue:

PuTTY 0.55, released today, fixes a serious security hole which may allow a server to execute code of its choice on a PuTTY client connecting to it. In SSH2, the attack can be performed before host key verification, meaning that even if you trust the server you think you are connecting to, a different machine could be impersonating it and could launch the attack before you could tell the difference. We recommend everybody upgrade to 0.55 as soon as possible.[break]The following downloads are available:
Binary for Windows 95, 98, Me, NT, 2000 and XP (Intel x86)
Binary for Windows NT (Alpha)
Unix source [break]