vulnerability
Ubuntu: (Multiple Advisories) (CVE-2021-4140): Firefox vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 10 | (AV:N/AC:L/Au:N/C:C/I:C/A:C) | Jan 13, 2022 | Jan 14, 2022 | Aug 18, 2025 |
Severity
10
CVSS
(AV:N/AC:L/Au:N/C:C/I:C/A:C)
Published
Jan 13, 2022
Added
Jan 14, 2022
Modified
Aug 18, 2025
Description
It was possible to construct specific XSLT markup that would be able to bypass an iframe sandbox. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.
Solutions
ubuntu-upgrade-firefoxubuntu-upgrade-thunderbird
References
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