The bug, which surfaced Tuesday, crashed Skype clients when they received an instant message composed of http://, the opening characters of all Internet addresses. The apps locked up and would not let users log in to the service. The only solution was to uninstall Skype on the personal computer, tablet or smartphone, then reinstall it.
Initially, Skype said that it had no workaround, but today the video and instant messaging chat vendor issued client updates to fix the problem.
"Our engineering teams ... have released updates for all impacted Skype platforms," said someone identified as Aimi on the Skype support discussion forum.
Skype, based in Luxembourg, is part of Microsoft.
The Skype flaw was reminiscent of one on Apple's iPhone that got attention last week. In that case, a longer string of Unicode characters sent via SMS (short message service) text or to iOS's own Messages app locked up the device when the message was opened or viewed as a notification on the lock screen.
Apple has not patched that bug, but has posted an advisory that suggested users call up Siri, then tell the digital assistant to "read unread messages."
Apple promised to update iOS with a permanent fix, but gave no timetable.
The new Skype clients can be downloaded from the service's website, or current users can manual trigger an in-place update.