vulnerability
Ubuntu: (Multiple Advisories) (CVE-2021-29970): Firefox vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:H/Au:N/C:P/I:P/A:P) | Jul 16, 2021 | Jul 17, 2021 | Mar 27, 2026 |
Severity
5
CVSS
(AV:N/AC:H/Au:N/C:P/I:P/A:P)
Published
Jul 16, 2021
Added
Jul 17, 2021
Modified
Mar 27, 2026
Description
A malicious webpage could have triggered a use-after-free, memory corruption, and a potentially exploitable crash. *This bug could only be triggered when accessibility was enabled.*. This vulnerability affects Thunderbird < 78.12, Firefox ESR < 78.12, and Firefox < 90.
Solutions
ubuntu-upgrade-firefoxubuntu-upgrade-thunderbird
Rapid7 Labs
2026 Global Threat Landscape Report
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