CVE-2021-43546
4.3
MEDIUM
CVSS 3.1
EPSS 0.44%
Description
It was possible to recreate previous cursor spoofing attacks against users with a zoomed native cursor. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
How to fix CVE-2021-43546
To remediate CVE-2021-43546, upgrade the affected package to a fixed version below.
- Debian/firefox-esr—upgrade to 91.4.1esr-1~deb11u1 or later
- Debian/thunderbird—upgrade to 1:91.4.1-1~deb11u1 or later
Is CVE-2021-43546 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 91.4.1esr-1~deb11u1
- from 0, < 1:91.4.1-1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N |