CVE-2020-6800
8.8
HIGH
CVSS 3.1
EPSS 0.95%
Description
Mozilla developers and community members reported memory safety bugs present in Firefox 72 and Firefox ESR 68.4. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. In general, these flaws cannot be exploited through email in the Thunderbird product because scripting is disabled when reading mail, but are potentially risks in browser or browser-like contexts. This vulnerability affects Thunderbird < 68.5, Firefox < 73, and Firefox < ESR68.5.
How to fix CVE-2020-6800
To remediate CVE-2020-6800, upgrade the affected package to a fixed version below.
- —upgrade to 68.5.0esr-1 or later
- —upgrade to 1:68.5.0-1 or later
Is CVE-2020-6800 being exploited?
Low — EPSS is 0.9%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 68.5.0esr-1
- from 0, < 1:68.5.0-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |