CVE-2018-12365
A compromised IPC child process can escape the content sandbox and list the names of arbitrary files on the file system without user consent or interaction.
Does this matter?
Lower severity and a low EPSS score (3.16%). Track it; it rarely justifies an emergency change on its own.
Description
A compromised IPC child process can escape the content sandbox and list the names of arbitrary files on the file system without user consent or interaction. This could result in exposure of private local files. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.
- CVSS 3.0
- 6.5 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- EPSS
- 3.16% probability · 88th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- 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 · debian/debian linux · canonical/ubuntu linux · mozilla/firefox · mozilla/firefox esr · mozilla/thunderbird
- Source
- security@mozilla.org
EPSS 3.2% 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/104560Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041193Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:2112Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2113Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2251Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2252Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1459206Issue Tracking, Permissions Required, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/06/msg00014.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/07/msg00013.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201810-01Third Party Advisory
- https://security.gentoo.org/glsa/201811-13Third Party Advisory
- https://usn.ubuntu.com/3705-1/Third Party Advisory
- https://usn.ubuntu.com/3714-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4235Third Party Advisory
- https://www.debian.org/security/2018/dsa-4244Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-15/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-16/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-17/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-18/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-19/Vendor Advisory
- http://www.securityfocus.com/bid/104560Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041193Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:2112Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2113Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2251Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2252Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1459206Issue Tracking, Permissions Required, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/06/msg00014.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/07/msg00013.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201810-01Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.