Critical severity · published Dec 22, 2022
CVE-2021-4127
An out of date graphics library (Angle) likely contained vulnerabilities that could potentially be exploited
9.8
CVSS
0.9%
EPSS
No
On KEV
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An out of date graphics library (Angle) likely contained vulnerabilities that could potentially be exploited.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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FE
Firefox Esr · Mozilla
before 78.9.0 · source: NVD
TH
Thunderbird · Mozilla
before 78.9.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-4127
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-4127
Exploit
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/
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