CVE-2018-17780

MEDIUM

Telegram Desktop <1.3.14 & Telegram 3.3.0.0 WP8.1 - Info Disclosure

Title source: llm

Description

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.

References (2)

Core 2

Core References

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/105521

Exploit, Third Party Advisory x_refsource_misc

https://www.inputzero.io/2018/09/bug-bounty-telegram-cve-2018-17780.html

Scores

CVSS v3 6.5

EPSS 0.0178

EPSS Percentile 75.5%

Attack Vector NETWORK

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Details

CWE

CWE-200

Status published

Products (2)

telegram/telegram_desktop 1.3.14

telegram/telegram_messenger 3.3.0.0

Published Sep 29, 2018

Tracked Since Feb 18, 2026