Vulnerability Description
An out of date graphics library (Angle) likely contained vulnerabilities that could potentially be exploited.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.
CVSS Score
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox Esr | < 78.9.0 |
| Mozilla | Thunderbird | < 78.9.0 |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1691547ExploitIssue TrackingPatch
- https://www.mozilla.org/security/advisories/mfsa2021-11/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-12/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1691547ExploitIssue TrackingPatch
- https://www.mozilla.org/security/advisories/mfsa2021-11/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-12/Vendor Advisory
FAQ
What is CVE-2021-4127?
CVE-2021-4127 is a vulnerability with a CVSS score of 9.8 (CRITICAL). An out of date graphics library (Angle) likely contained vulnerabilities that could potentially be exploited.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.
How severe is CVE-2021-4127?
CVE-2021-4127 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2021-4127?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox Esr, Mozilla Thunderbird.