Certain configurations of aes-128-cbc using certain software stacks have been found to have vulnerabilities. But if you really couldn't decrypt it, you could at

Certain configurations of aes-128-cbc using certain software stacks have been found to have vulnerabilities. But if you really couldn't decrypt it, you could at least save anything you think might have the password in it, and then wait until you can decrypt it at some point in the future.