CVE-2017-16541

medium

Description

Tor Browser before 7.0.9 on macOS and Linux allows remote attackers to bypass the intended anonymity feature and discover a client IP address via vectors involving a crafted web site that leverages file:// mishandling in Firefox, aka TorMoil. NOTE: Tails is unaffected.

References

Advisories
More

https://www.wearesegment.com/research/tormoil-torbrowser-unspecified-critical-security-vulnerability/

https://www.debian.org/security/2018/dsa-4327

https://www.bleepingcomputer.com/news/security/tormoil-vulnerability-leaks-real-ip-address-from-tor-browser-users/

https://security.gentoo.org/glsa/201811-13

https://security.gentoo.org/glsa/201810-01

https://lists.debian.org/debian-lts-announce/2018/11/msg00011.html

https://access.redhat.com/errata/RHSA-2018:3458

https://access.redhat.com/errata/RHSA-2018:3403

https://access.redhat.com/errata/RHSA-2018:2693

https://access.redhat.com/errata/RHSA-2018:2692

https://trac.torproject.org/projects/tor/ticket/24052

https://euvd.enisa.europa.eu/vulnerability/EUVD-2017-7734

https://bugzilla.mozilla.org/show_bug.cgi?id=1412081

https://blog.torproject.org/tor-browser-709-released

http://www.securitytracker.com/id/1041610

http://www.securityfocus.com/bid/101665

Details

Source: Mitre, NVD

Published: 2017-11-04

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Severity: Medium

EPSS

EPSS: 0.02