vulnerability
Arch Linux: Content spoofing (CVE-2021-29961)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:P/A:N) | Jun 24, 2021 | Jul 11, 2025 | Mar 25, 2026 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
Jun 24, 2021
Added
Jul 11, 2025
Modified
Mar 25, 2026
Description
When styling and rendering an oversized `<select>` element, Firefox did not apply correct clipping which allowed an attacker to paint over the user interface.
Solution
arch-linux-upgrade-latest
References
- CVE-2021-29961
- https://attackerkb.com/topics/CVE-2021-29961
- https://bugzilla.mozilla.org/show_bug.cgi?id=1700235
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-16420
- https://security.archlinux.org/ASA-202106-3
- https://security.gentoo.org/glsa/202107-09
- https://www.mozilla.org/security/advisories/mfsa2021-23/
- CWE-863
- EUVD-EUVD-2021-16420
Rapid7 Labs
2026 Global Threat Landscape Report
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