CVE-2019-11749

MEDIUM

Firefox < 69.0 and Firefox ESR < 68.1.0 - Unauthenticated Device Fingerprinting via WebRTC getUserMedia API

Title source: llm
STIX 2.1

Description

A vulnerability exists in WebRTC where malicious web content can use probing techniques on the getUserMedia API using constraints to reveal device properties of cameras on the system without triggering a user prompt or notification. This allows for the potential fingerprinting of users. This vulnerability affects Firefox < 69 and Firefox ESR < 68.1.

References (5)

Core 5
Core References
Issue Tracking, Permissions Required, Vendor Advisory x_refsource_misc
https://bugzilla.mozilla.org/show_bug.cgi?id=1565374
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2019-25/
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2019-26/

Scores

CVSS v3 4.3
EPSS 0.0037
EPSS Percentile 58.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Details

Status published
Products (2)
mozilla/firefox < 69.0
mozilla/firefox_esr < 68.1.0
Published Sep 27, 2019
Tracked Since Feb 18, 2026