CVE-2018-12390

critical

Description

Mozilla developers and community members reported memory safety bugs present in Firefox 62 and 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 < 63, Firefox ESR < 60.3, and Thunderbird < 60.3.

References

Advisories
More

https://www.debian.org/security/2018/dsa-4337

https://www.debian.org/security/2018/dsa-4324

https://usn.ubuntu.com/3868-1/

https://usn.ubuntu.com/3801-1/

https://security.gentoo.org/glsa/201811-13

https://security.gentoo.org/glsa/201811-04

https://lists.debian.org/debian-lts-announce/2018/11/msg00011.html

https://lists.debian.org/debian-lts-announce/2018/11/msg00008.html

https://access.redhat.com/errata/RHSA-2018:3532

https://access.redhat.com/errata/RHSA-2018:3531

https://access.redhat.com/errata/RHSA-2018:3006

https://access.redhat.com/errata/RHSA-2018:3005

http://www.securitytracker.com/id/1041944

http://www.securityfocus.com/bid/105769

http://www.securityfocus.com/bid/105718

https://www.mozilla.org/security/advisories/mfsa2018-28/

https://www.mozilla.org/security/advisories/mfsa2018-27/

https://www.mozilla.org/security/advisories/mfsa2018-26/

https://euvd.enisa.europa.eu/vulnerability/EUVD-2018-4364

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1487098%2C1487660%2C1490234%2C1496159%2C1443748%2C1496340%2C1483905%2C1493347%2C1488803%2C1498701%2C1498482%2C1442010%2C1495245%2C1483699%2C1469486%2C1484905%2C1490561%2C1492524%2C1481844

Details

Source: Mitre, NVD

Published: 2019-02-28

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

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

Severity: Critical

EPSS

EPSS: 0.06392