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Vulnerability details: VCID-wupx-zsbb-k7am
Vulnerability ID VCID-wupx-zsbb-k7am
Aliases CVE-2018-12389
Summary Mozilla developers and community members Daniel Veditz and Philipp 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.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
System Score Found at
cvssv3 8.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-12389.json
epss 0.01143 https://api.first.org/data/v1/epss?cve=CVE-2018-12389
epss 0.01143 https://api.first.org/data/v1/epss?cve=CVE-2018-12389
epss 0.01143 https://api.first.org/data/v1/epss?cve=CVE-2018-12389
epss 0.01143 https://api.first.org/data/v1/epss?cve=CVE-2018-12389
epss 0.01143 https://api.first.org/data/v1/epss?cve=CVE-2018-12389
epss 0.01143 https://api.first.org/data/v1/epss?cve=CVE-2018-12389
epss 0.01143 https://api.first.org/data/v1/epss?cve=CVE-2018-12389
epss 0.01143 https://api.first.org/data/v1/epss?cve=CVE-2018-12389
epss 0.01143 https://api.first.org/data/v1/epss?cve=CVE-2018-12389
epss 0.01143 https://api.first.org/data/v1/epss?cve=CVE-2018-12389
epss 0.01143 https://api.first.org/data/v1/epss?cve=CVE-2018-12389
epss 0.01143 https://api.first.org/data/v1/epss?cve=CVE-2018-12389
epss 0.01143 https://api.first.org/data/v1/epss?cve=CVE-2018-12389
epss 0.01143 https://api.first.org/data/v1/epss?cve=CVE-2018-12389
epss 0.01143 https://api.first.org/data/v1/epss?cve=CVE-2018-12389
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2018-12389
cvssv3 8.8 https://nvd.nist.gov/vuln/detail/CVE-2018-12389
archlinux Critical https://security.archlinux.org/AVG-803
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2018-27
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2018-28
Reference id Reference type URL
https://access.redhat.com/errata/RHSA-2018:3005
https://access.redhat.com/errata/RHSA-2018:3006
https://access.redhat.com/errata/RHSA-2018:3531
https://access.redhat.com/errata/RHSA-2018:3532
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-12389.json
https://api.first.org/data/v1/epss?cve=CVE-2018-12389
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1498460%2C1499198
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12389
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12390
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12392
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12393
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12395
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12396
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12397
https://lists.debian.org/debian-lts-announce/2018/11/msg00008.html
https://lists.debian.org/debian-lts-announce/2018/11/msg00011.html
https://security.gentoo.org/glsa/201811-04
https://security.gentoo.org/glsa/201811-13
https://www.debian.org/security/2018/dsa-4324
https://www.debian.org/security/2018/dsa-4337
https://www.mozilla.org/security/advisories/mfsa2018-27/
https://www.mozilla.org/security/advisories/mfsa2018-28/
http://www.securityfocus.com/bid/105723
http://www.securityfocus.com/bid/105769
http://www.securitytracker.com/id/1041944
1642179 https://bugzilla.redhat.com/show_bug.cgi?id=1642179
ASA-201811-10 https://security.archlinux.org/ASA-201811-10
AVG-803 https://security.archlinux.org/AVG-803
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
CVE-2018-12389 https://nvd.nist.gov/vuln/detail/CVE-2018-12389
mfsa2018-27 https://www.mozilla.org/en-US/security/advisories/mfsa2018-27
mfsa2018-28 https://www.mozilla.org/en-US/security/advisories/mfsa2018-28
USN-3868-1 https://usn.ubuntu.com/3868-1/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-12389.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2018-12389
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-12389
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.77566
EPSS Score 0.01143
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:09:54.104714+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2018/mfsa2018-28.yml 37.0.0