vulnerability
MFSA2017-22 Firefox: Security vulnerabilities fixed in Firefox ESR 52.4 (CVE-2017-7793)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:P/I:P/A:P) | Sep 28, 2017 | Sep 29, 2017 | Aug 11, 2025 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
Sep 28, 2017
Added
Sep 29, 2017
Modified
Aug 11, 2025
Description
A use-after-free vulnerability can occur in the Fetch API when the worker or the associated window are freed when still in use, resulting in a potentially exploitable crash. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.
Solution
mozilla-firefox-esr-upgrade-52_4
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