vulnerability
Rocky Linux: CVE-2025-2817: firefox (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 9 | (AV:N/AC:L/Au:S/C:C/I:C/A:C) | Jul 29, 2025 | Jul 31, 2025 | Apr 15, 2026 |
Severity
9
CVSS
(AV:N/AC:L/Au:S/C:C/I:C/A:C)
Published
Jul 29, 2025
Added
Jul 31, 2025
Modified
Apr 15, 2026
Description
Thunderbird's update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level updater by manipulating the file-locking behavior. By injecting code into the user-privileged process, an attacker could bypass intended access controls, allowing SYSTEM-level file operations on paths controlled by a non-privileged user and enabling privilege escalation. This vulnerability was fixed in Firefox 138, Firefox ESR 128.10, Firefox ESR 115.23, Thunderbird 138, and Thunderbird 128.10.
Solutions
rocky-upgrade-firefoxrocky-upgrade-firefox-debuginforocky-upgrade-firefox-debugsourcerocky-upgrade-firefox-x11rocky-upgrade-thunderbirdrocky-upgrade-thunderbird-debuginforocky-upgrade-thunderbird-debugsource
References
- CVE-2025-2817
- https://attackerkb.com/topics/CVE-2025-2817
- CWE-22
- EUVD-EUVD-2025-12689
- https://errata.rockylinux.org/RLSA-2025:4443
- https://errata.rockylinux.org/RLSA-2025:4458
- https://errata.rockylinux.org/RLSA-2025:4460
- https://errata.rockylinux.org/RLSA-2025:4797
- https://errata.rockylinux.org/RLSA-2025:7428
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-12689
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.