CVE-2017-16639: Torproject Tor Browser

Medium severity, CVSS 4.3. EPSS: 2.4% chance of exploitation in the next 30 days.

Tor Browser on Windows before 8.0 allows remote attackers to bypass the intended anonymity feature and discover a client IP address, a different vulnerability than CVE-2017-16541. User interaction is required to trigger this vulnerability.

Affected products

• Torproject Tor Browser: before 8.0 (fixed in 8.0)

Published 2018-09-14. Last modified 2026-06-17.