CVE-2021-4127
CRITICALThunderbird <78.9 - Firefox ESR <78.9 - Info Disclosure
Title source: llmDescription
An out of date graphics library (Angle) likely contained vulnerabilities that could potentially be exploited.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.
References (3)
Core 3
Core References
Exploit, Issue Tracking, Patch, Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1691547
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-11/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-12/
Scores
CVSS v3
9.8
EPSS
0.0070
EPSS Percentile
72.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
Status
published
Products (2)
mozilla/firefox_esr
< 78.9.0
mozilla/thunderbird
< 78.9.0
Published
Dec 22, 2022
Tracked Since
Feb 18, 2026