CVE-2018-17780: Infoleak
Telegram Desktop (aka tdesktop) 1.3.14, and Telegram 3.3.0.0 WP8.1 on Windows, leaks end-user public and private IP addresses during a call because of an unsafe default behavior in which P2P connections are accepted from clients outside of the My Contacts list.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2018-17780?
CVE-2018-17780 is a vulnerability in Telegram Desktop and Telegram Messenger that leaks end-user public and private IP addresses during a call.
How does CVE-2018-17780 affect Telegram Desktop and Telegram Messenger?
CVE-2018-17780 allows P2P connections from clients outside of the My Contacts list, leading to the leakage of end-user IP addresses.
What is the severity of CVE-2018-17780?
CVE-2018-17780 has a severity rating of medium, with a value of 6.5.
How can I fix CVE-2018-17780?
To fix CVE-2018-17780, update Telegram Desktop to version 1.3.15 or later, and update Telegram Messenger to version 3.3.0.1 or later.
Where can I find more information about CVE-2018-17780?
For more information about CVE-2018-17780, you can refer to the following sources: [SecurityFocus](http://www.securityfocus.com/bid/105521) and [InputZero](https://www.inputzero.io/2018/09/bug-bounty-telegram-cve-2018-17780.html).