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CVE-2018-12376

31
FAUCET Score

CVE-2018-12376 describes multiple memory safety bugs in Firefox 61, Firefox ESR 60.1, and related Mozilla products, which could lead to arbitrary code execution. With a CVSS score of 9.8 (Critical), this vulnerability is easily exploitable over the network with low complexity and no user interaction, potentially leading to full compromise of confidentiality, integrity, and availability. Despite its high severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
7.6CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.15%
Probability of exploitation in next 30 days
EPSS Percentile
86.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0315 is in the 78th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:60.2.0-1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: thunderbird-0:60.2.1-5.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: firefox-0:60.2.0-1.el7_5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: thunderbird-0:60.2.1-4.el7_5
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2018-12376Critical

Mozilla: Memory safety bugs fixed in Firefox 62 and Firefox ESR 60.2

Sep 5, 2018

References

access.redhat.com / errata/RHSA-2018:2692
Third Party Advisory
access.redhat.com / errata/RHSA-2018:2693
Third Party Advisory
access.redhat.com / errata/RHSA-2018:3403
Third Party Advisory
access.redhat.com / errata/RHSA-2018:3458
Third Party Advisory
bugzilla.mozilla.org / buglist.cgi
Issue TrackingThird Party Advisory
lists.debian.org / debian-lts-announce/2018/11/msg00011.html
Mailing ListThird Party Advisory
security.gentoo.org / glsa/201810-01
Third Party Advisory
security.gentoo.org / glsa/201811-13
Third Party Advisory
usn.ubuntu.com / 3761-1
Third Party Advisory
usn.ubuntu.com / 3793-1
Third Party Advisory
debian.org / security/2018/dsa-4287
Third Party Advisory
debian.org / security/2018/dsa-4327
Third Party Advisory
mozilla.org / security/advisories/mfsa2018-20
Vendor Advisory
mozilla.org / security/advisories/mfsa2018-21
Vendor Advisory
mozilla.org / security/advisories/mfsa2018-25
Vendor Advisory
securityfocus.com / bid/105280
Third Party AdvisoryVDB Entry
securitytracker.com / id/1041610
Third Party AdvisoryVDB Entry