Mozilla Thunderbird: Mozilla developers and community members reported memory safety bugs present in Firefox…

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 0.032, the 88th percentile, on 8 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 28 Feb 2019. New records show when each source confirmed them.

Sources

• CVE List: CVE-2018-12405
• NVD: CVE-2018-12405

References from the CNA

• www.mozilla.org/security/advisories/mfsa2018-29/ confirm
• lists.debian.org/debian-lts-announce/2018/12/msg00002.html mailing-listmlist
• access.redhat.com/errata/RHSA-2018:3833 vendor-advisoryredhat
• access.redhat.com/errata/RHSA-2018:3831 vendor-advisoryredhat
• www.debian.org/security/2019/dsa-4362 vendor-advisorydebian
• security.gentoo.org/glsa/201903-04 vendor-advisorygentoo
• bugzilla.mozilla.org/buglist.cgi?bug_id=1494752%2C1498765%2C1503326%2C1505181%2C1500759%2C1504365%2C1506640%2C1503082%2C1502013%2C1510471 confirm
• usn.ubuntu.com/3844-1/ vendor-advisoryubuntu
• www.securityfocus.com/bid/106168 vdb-entrybid
• access.redhat.com/errata/RHSA-2019:0159 vendor-advisoryredhat
• www.mozilla.org/security/advisories/mfsa2018-31/ confirm
• www.mozilla.org/security/advisories/mfsa2018-30/ confirm
• www.debian.org/security/2018/dsa-4354 vendor-advisorydebian
• usn.ubuntu.com/3868-1/ vendor-advisoryubuntu
• access.redhat.com/errata/RHSA-2019:0160 vendor-advisoryredhat

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.