Mozilla Firefox: A use-after-free vulnerability can occur when refresh driver timers are refreshed in some…

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

No source has published a CVSS score for this record yet.

• CISA KEV Not listed.
• EPSS 0.034, the 88th percentile, on 9 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 18 Oct 2018. New records show when each source confirmed them.

Sources

• CVE List: CVE-2018-12377
• NVD: CVE-2018-12377

References from the CNA

• www.securityfocus.com/bid/105280 vdb-entrybid
• security.gentoo.org/glsa/201810-01 vendor-advisorygentoo
• access.redhat.com/errata/RHSA-2018:2693 vendor-advisoryredhat
• lists.debian.org/debian-lts-announce/2018/11/msg00011.html mailing-listmlist
• security.gentoo.org/glsa/201811-13 vendor-advisorygentoo
• www.debian.org/security/2018/dsa-4327 vendor-advisorydebian
• access.redhat.com/errata/RHSA-2018:3403 vendor-advisoryredhat
• www.mozilla.org/security/advisories/mfsa2018-20/ confirm
• bugzilla.mozilla.org/show_bug.cgi?id=1470260 confirm
• www.securitytracker.com/id/1041610 vdb-entrysectrack
• access.redhat.com/errata/RHSA-2018:2692 vendor-advisoryredhat
• access.redhat.com/errata/RHSA-2018:3458 vendor-advisoryredhat
• usn.ubuntu.com/3793-1/ vendor-advisoryubuntu
• www.mozilla.org/security/advisories/mfsa2018-21/ confirm
• www.mozilla.org/security/advisories/mfsa2018-25/ confirm
• usn.ubuntu.com/3761-1/ vendor-advisoryubuntu
• www.debian.org/security/2018/dsa-4287 vendor-advisorydebian

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.