CVE-2023-37209

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

A use-after-free condition existed in `NotifyOnHistoryReload` where a `LoadingSessionHistoryEntry` object was freed and a reference to that object remained. This resulted in a potentially exploitable condition when the reference to that object was later reused. This vulnerability affects Firefox < 115.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Jul 5, 2023
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2023-37209: High severity, CVSS 8.8 | Vulnix