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CVE-2018-12392

CRITICAL

When manipulating user events in nested loops while opening a document through script, it is possible to trigger a potentially exploitable crash due to poor event handling. This vulnerability affects Firefox < 63, Firefox ESR < 60.3, and Thunderbird < 60.3.

Published: Feb 28, 2019 Modified: Jun 17, 2026
NVD-CWE-noinfo

CVSS Metrics

CVSSv3
Attack Vector: NETWORK Attack Complexity: LOW Privileges Required: NONE User Interaction: NONE Scope: UNCHANGED Confidentiality Impact: HIGH Integrity Impact: HIGH Availability Impact: HIGH

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

Affected Products (19)

Vendor Product Version
mozilla firefox * < 60.3.0
mozilla firefox * < 63.0
mozilla thunderbird * < 60.3.0
debian debian_linux 8.0
debian debian_linux 9.0
canonical ubuntu_linux 14.04
canonical ubuntu_linux 16.04
canonical ubuntu_linux 18.04
canonical ubuntu_linux 18.10
redhat enterprise_linux_desktop 6.0
redhat enterprise_linux_desktop 7.0
redhat enterprise_linux_server 6.0
redhat enterprise_linux_server 7.0
redhat enterprise_linux_server_aus 7.6
redhat enterprise_linux_server_eus 7.5
redhat enterprise_linux_server_eus 7.6
redhat enterprise_linux_server_tus 7.6
redhat enterprise_linux_workstation 6.0
redhat enterprise_linux_workstation 7.0

GitHub Security Advisory GHSA-328m-hvwm-m425

When manipulating user events in nested loops while opening a document through script, it is...

Risk Scores

CVSS Score 9.8 / 10
EPSS Score 3.43%

Top 12% most likely to be exploited

Threat Score 40.2 / 100

Data Sources

NVD EPSS GitHub