CVE-2019-9811
8.3
HIGH
CVSS 3.1
EPSS 0.55%
Description
As part of a winning Pwn2Own entry, a researcher demonstrated a sandbox escape by installing a malicious language pack and then opening a browser feature that used the compromised translation. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.
How to fix CVE-2019-9811
To remediate CVE-2019-9811, upgrade the affected package to a fixed version below.
- Debian/firefox-esr—upgrade to 60.8.0esr-1 or later
- —upgrade to 1:60.8.0-1 or later
Is CVE-2019-9811 being exploited?
Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 60.8.0esr-1
- from 0, < 1:60.8.0-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.3 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H |