CVE-2016-2831
8.8
HIGH
CVSS 3.1
EPSS 0.66%
Description
Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2 do not ensure that the user approves the fullscreen and pointerlock settings, which allows remote attackers to cause a denial of service (UI outage), or conduct clickjacking or spoofing attacks, via a crafted web site.
How to fix CVE-2016-2831
To remediate CVE-2016-2831, upgrade the affected package to a fixed version below.
- Debian/firefox-esr—upgrade to 45.2.0esr-1 or later
Is CVE-2016-2831 being exploited?
Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 45.2.0esr-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:H |