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.
History

Tue, 25 Nov 2025 18:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
Vendors & Products Mozilla firefox Esr

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2018-06-11T21:00:00

Updated: 2024-08-05T16:12:28.398Z

Reserved: 2017-04-12T00:00:00

Link: CVE-2017-7793

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-06-11T21:29:09.500

Modified: 2025-11-25T17:50:16.803

Link: CVE-2017-7793

cve-icon Redhat

Severity : Important

Publid Date: 2017-09-28T00:00:00Z

Links: CVE-2017-7793 - Bugzilla