CVE-2022-38477
8.8
HIGH
CVSS 3.1
EPSS 0.20%
Description
Mozilla developer Nika Layzell and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 103 and Firefox ESR 102.1. 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. This vulnerability affects Firefox ESR < 102.2, Thunderbird < 102.2, and Firefox < 104.
How to fix CVE-2022-38477
To remediate CVE-2022-38477, upgrade the affected package to a fixed version below.
- —upgrade to 102.2.0esr-1 or later
- —upgrade to 1:102.2.0-1 or later
Is CVE-2022-38477 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 102.2.0esr-1
- from 0, < 1:102.2.0-1
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 |