CVE-2018-12392

critical
Published — · Modified —
CVSS v3
CVSS v2
VIR risk
9.5

Description

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.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2018-12392

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2018-12392.html

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-201810-14

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-201811-10

OS impact

OSVersionStatusFixed in
arch archfixed60.3.0-1
suse slesaffected
debian debiansidfixed63.0-1
debian debianbookwormfixed60.3.0esr-1
debian debianbullseyefixed60.3.0esr-1
debian debianforkyfixed60.3.0esr-1
debian debiantrixiefixed60.3.0esr-1

References

Verify integrity in audit chain (admin only). AS-IS.