vulnerability
Alma Linux: CVE-2025-0243: Important: firefox security update (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:L/AC:L/Au:N/C:P/I:P/A:N) | Jan 7, 2025 | Jan 13, 2025 | Apr 20, 2026 |
Severity
4
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:N)
Published
Jan 7, 2025
Added
Jan 13, 2025
Modified
Apr 20, 2026
Description
Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 128.5, and Thunderbird 128.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 134, Firefox ESR 128.6, Thunderbird 134, and Thunderbird 128.6.
Solutions
alma-upgrade-firefoxalma-upgrade-firefox-x11alma-upgrade-thunderbird
References
- CVE-2025-0243
- https://attackerkb.com/topics/CVE-2025-0243
- CWE-787
- EUVD-EUVD-2025-1575
- https://errata.almalinux.org/8/ALSA-2025-0144.html
- https://errata.almalinux.org/8/ALSA-2025-0281.html
- https://errata.almalinux.org/9/ALSA-2025-0080.html
- https://errata.almalinux.org/9/ALSA-2025-0147.html
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-1575
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.