VULNERABILITY INTELLIGENCE

CVE-2018-17780

CVSS score6.5 MEDIUM

EPSS probability1.80%

CISA KEVNot currently listed

Published2018-09-29

Last modified2026-06-17

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

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.

Weakness classification

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Primary references

cve@mitre.org — Third Party Advisory, VDB Entry
cve@mitre.org — Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory