Vulnerability in Mozilla Firefox

CVE-2019-11749

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.

EPSS: 0.009 (55.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.

Affected products

References

Frequently asked questions

What is CVE-2019-11749?
CVE-2019-11749 is a medium-severity vulnerability in Mozilla Firefox. CVSS score: 4.3/10. Published 2019-09-27.
How severe is CVE-2019-11749?
Medium severity. CVSS v3 base score is 4.3 out of 10.