vulnerability
Ubuntu: (Multiple Advisories) (CVE-2021-23973): Firefox vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:P/I:N/A:N) | Feb 26, 2021 | Feb 27, 2021 | Aug 18, 2025 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
Feb 26, 2021
Added
Feb 27, 2021
Modified
Aug 18, 2025
Description
When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.
Solutions
ubuntu-upgrade-firefoxubuntu-upgrade-thunderbird
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