vulnerability
Alpine Linux: CVE-2021-38506: Improper Restriction of Rendered UI Layers or Frames
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:P/A:N) | Dec 8, 2021 | Aug 22, 2024 | Jun 18, 2026 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
Dec 8, 2021
Added
Aug 22, 2024
Modified
Jun 18, 2026
Description
Through a series of navigations, Firefox could have entered fullscreen mode without notification or warning to the user. This could lead to spoofing attacks on the browser UI including phishing. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
Solutions
alpine-linux-upgrade-firefox-esralpine-linux-upgrade-firefoxalpine-linux-upgrade-thunderbirdalpine-linux-upgrade-librewolf
Rapid7 Labs
2026 Global Threat Landscape Report
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