Information disclosure in Telegram Telegram_desktop
CVE-2018-17780
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…
Vulnerability class: Information Disclosure
EPSS: 0.018 (75.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Telegram Telegram_desktop — versions 1.3.14
- Telegram Telegram_messenger — versions 3.3.0.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2018-17780?
- CVE-2018-17780 is a medium-severity vulnerability in Telegram Telegram_desktop, classified under Information Disclosure. CVSS score: 6.5/10. Published 2018-09-29.
- How severe is CVE-2018-17780?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2018-17780 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.