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CVE-2018-12375

28
FAUCET Score

CVE-2018-12375 is a high-severity memory safety vulnerability affecting Firefox versions prior to 62, as well as canonical Ubuntu Linux distributions. This flaw could lead to memory corruption, potentially allowing for arbitrary code execution. With a CVSS score of 8.8, it presents a significant risk due to its low attack complexity and high impact on confidentiality, integrity, and availability. While no active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion has been observed, the potential for arbitrary code execution warrants prompt patching.

Impacted Technologies

VendorProductVersion(s)CPE
< 62.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
18.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
< 62CPE match
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

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
1.84%
Probability of exploitation in next 30 days
EPSS Percentile
76.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0184 is in the 76th percentile among its peer group of 14,855 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

Vendor Patches (1)

mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2018-12375Important

Mozilla: Memory safety bugs fixed in Firefox 62

Sep 5, 2018

References

bugzilla.mozilla.org / buglist.cgi
Issue TrackingNot ApplicableVendor Advisory
usn.ubuntu.com / 3761-1
Third Party Advisory
mozilla.org / security/advisories/mfsa2018-20
Vendor Advisory
securityfocus.com / bid/105276
Third Party AdvisoryVDB Entry
securitytracker.com / id/1041610
Third Party AdvisoryVDB Entry