vulnerability
MFSA2025-57 Firefox: Security Vulnerabilities fixed in Firefox ESR 115.26 (CVE-2025-8033)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:M/Au:N/C:C/I:N/A:N) | Jul 22, 2025 | Jul 23, 2025 | Feb 10, 2026 |
Severity
7
CVSS
(AV:N/AC:M/Au:N/C:C/I:N/A:N)
Published
Jul 22, 2025
Added
Jul 23, 2025
Modified
Feb 10, 2026
Description
The JavaScript engine did not handle closed generators correctly and it was possible to resume them leading to a nullptr deref. This vulnerability affects Firefox < 141, Firefox ESR < 115.26, Firefox ESR < 128.13, Firefox ESR < 140.1, Thunderbird < 141, Thunderbird < 128.13, and Thunderbird < 140.1.
Solution
mozilla-firefox-esr-upgrade-115_26
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