Microsoft Won't Patch a Severe Skype Vulnerability Anytime Soon

A serious vulnerability has been discovered in Microsoft-owned most popular free web messaging and voice calling service Skyp,It's not because the flaw is unpatchable, but because fixing the vulnerability requires a significant software rewrite, which indicates that the company will need to issue an all-new version of Skype rather than just a patch.

The exploitation of this preferential search order would allow the attacker to hijack the update process by downloading and placing a malicious version of a DLL file into a temporary folder of a Windows PC and renaming it to match a legitimate DLL that can be modified by an unprivileged user without having any special account privileges.
When Skype's update installer tries to find the relevant DLL file, it will find the malicious DLL first, and thereby will install the malicious code.

When Skype's update installer tries to find the relevant DLL file, it will find the malicious DLL first, and thereby will install the malicious code.