CVE-2016-5263
8.8
HIGH
CVSS 3.1
EPSS 0.68%
Description
The nsDisplayList::HitTest function in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 mishandles rendering display transformation, which allows remote attackers to execute arbitrary code via a crafted web site that leverages "type confusion."
How to fix CVE-2016-5263
To remediate CVE-2016-5263, upgrade the affected package to a fixed version below.
- Debian/firefox-esr—upgrade to 45.3.0esr-1 or later
Is CVE-2016-5263 being exploited?
Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 45.3.0esr-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:U/C:H/I:H/A:H |