CVE-2018-12377

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

A use-after-free vulnerability can occur when refresh driver timers are refreshed in some circumstances during shutdown when the timer is deleted while still in use. This results in a potentially exploitable crash. This vulnerability affects Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.2.1.

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

CWE-416

Affected software

VendorProductVersions
MozillaFirefox>= unspecified, < 62
MozillaFirefox ESR>= unspecified, < 60.2
MozillaThunderbird>= unspecified, < 60.2.1

References

Timeline

Published
Oct 18, 2018
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2018-12377: Critical severity, CVSS 9.8 | Vulnix