CVE-2018-12389
Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.35%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Mozilla developers and community members reported memory safety bugs present in Firefox ESR 60.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox ESR < 60.3 and Thunderbird < 60.3.
- CVSS 3.0
- 8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 2.35% probability · 84th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- mozilla/firefox · mozilla/thunderbird · debian/debian linux · canonical/ubuntu linux · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server eus · redhat/enterprise linux server tus · redhat/enterprise linux workstation
- Source
- security@mozilla.org
EPSS 2.3% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/105723Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/105769Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041944Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:3005Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3006Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3531Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3532Third Party Advisory
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1498460%2C1499198Broken Link, Issue Tracking, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/11/msg00008.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/11/msg00011.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201811-04Third Party Advisory
- https://security.gentoo.org/glsa/201811-13Third Party Advisory
- https://usn.ubuntu.com/3868-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4324Third Party Advisory
- https://www.debian.org/security/2018/dsa-4337Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-27/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-28/Vendor Advisory
- http://www.securityfocus.com/bid/105723Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/105769Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041944Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:3005Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3006Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3531Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3532Third Party Advisory
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1498460%2C1499198Broken Link, Issue Tracking, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/11/msg00008.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/11/msg00011.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201811-04Third Party Advisory
- https://security.gentoo.org/glsa/201811-13Third Party Advisory
- https://usn.ubuntu.com/3868-1/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.