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CVE-2018-12362

28
FAUCET Score

CVE-2018-12362 describes an integer overflow vulnerability in Mozilla products, including Firefox and Thunderbird, that occurs during graphics operations utilizing SSSE3. This flaw can lead to a potentially exploitable crash. Rated with a CVSS score of 8.8 (HIGH), it is a network-exploitable vulnerability with low attack complexity, requiring user interaction, and can result in high impacts to confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

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

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.77%
Probability of exploitation in next 30 days
EPSS Percentile
88.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0377 is in the 88th percentile among its peer group of 14,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 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 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:60.1.0-5.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: thunderbird-0:52.9.1-1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: firefox-0:60.1.0-4.el7_5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: thunderbird-0:52.9.1-1.el7_5
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2018-12362Important

Mozilla: Integer overflow in SSSE3 scaler

Jun 26, 2018

References

access.redhat.com / errata/RHSA-2018:2112
Third Party Advisory
access.redhat.com / errata/RHSA-2018:2113
Third Party Advisory
access.redhat.com / errata/RHSA-2018:2251
Third Party Advisory
access.redhat.com / errata/RHSA-2018:2252
Third Party Advisory
bugzilla.mozilla.org / show_bug.cgi
Issue TrackingPermissions RequiredVendor Advisory
lists.debian.org / debian-lts-announce/2018/06/msg00014.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2018/07/msg00013.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 / 3705-1
Third Party Advisory
usn.ubuntu.com / 3714-1
Third Party Advisory
debian.org / security/2018/dsa-4235
Third Party Advisory
debian.org / security/2018/dsa-4244
Third Party Advisory
mozilla.org / security/advisories/mfsa2018-15
Vendor Advisory
mozilla.org / security/advisories/mfsa2018-16
Vendor Advisory
mozilla.org / security/advisories/mfsa2018-17
Vendor Advisory
mozilla.org / security/advisories/mfsa2018-18
Vendor Advisory
mozilla.org / security/advisories/mfsa2018-19
Vendor Advisory
securityfocus.com / bid/104560
Third Party AdvisoryVDB Entry
securitytracker.com / id/1041193
Third Party AdvisoryVDB Entry