CVE-2021-43546
Medium
Published: 08 December 2021
Published
08 December 2021
Modified
21 November 2024
KEV Added
—
Patch
—
CVSS Score v3.1
4.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
EPSS Score
0.0044
63.5th percentile
Risk Priority
9
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-43546 is a medium-severity Improper Restriction of Rendered UI Layers or Frames (CWE-1021) vulnerability in Debian Debian Linux. Its CVSS base score is 4.3 (Medium).
Operationally, ranked in the top 36.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-30475
Vulnerability details
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.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
mozilla
firefox
≤ 95.0
mozilla
firefox esr
≤ 91.4.0
mozilla
thunderbird
≤ 91.4.0
debian
debian linux
10.0, 11.0, 9.0
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.