CVE-2019-9800
9.8
CRITICAL
CVSS 3.1
EPSS 0.79%
Description
Mozilla developers and community members reported memory safety bugs present in Firefox 66, Firefox ESR 60.6, and Thunderbird 60.6. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.
How to fix CVE-2019-9800
To remediate CVE-2019-9800, upgrade the affected package to a fixed version below.
- —upgrade to 60.7.0esr-1 or later
- —upgrade to 1:60.7.0-1 or later
Is CVE-2019-9800 being exploited?
Low — EPSS is 0.8%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 60.7.0esr-1
- from 0, < 1:60.7.0-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |