Vulnerability in Mozilla Firefox Esr

CVE-2021-4127

An out of date graphics library (Angle) likely contained vulnerabilities that could potentially be exploited. This vulnerability affects Thunderbird < 78.9 and Firefox ESR < 78.9.

EPSS: 0.009 (56.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

References

Frequently asked questions

What is CVE-2021-4127?
CVE-2021-4127 is a critical-severity vulnerability in Mozilla Firefox Esr. CVSS score: 9.8/10. Published 2022-12-22.
How severe is CVE-2021-4127?
Critical severity. CVSS v3 base score is 9.8 out of 10.