CVE-2019-9820

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

A use-after-free vulnerability can occur in the chrome event handler when it is freed while still in use. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.

Metrics

CVSS 3.0 9.8/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Jul 23, 2019
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2019-9820: Critical severity, CVSS 9.8 | Vulnix