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CVE-2018-12371

Published: Jul 9, 2020Updated: Nov 25, 2025 Sources: CVE List NVD BDUCWE-190
NVD MITRE
8.8CVSSHIGH
EPSS Score
1.4%
Top 30.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

An integer overflow vulnerability in the Skia library when allocating memory for edge builders on some systems with at least 16 GB of RAM. This results in the use of uninitialized memory, resulting in a potentially exploitable crash. This vulnerability affects Firefox ESR < 60.1, Thunderbird < 60, and Firefox < 61.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-190

Affected Products

firefoxmozilla
On-premDesktop App
Consumer Software / browser
thunderbirdmozilla
On-premDesktop App
Communications / email-server-client
Firefox ESRMozilla
Desktop App
Consumer Software / browser
ThunderbirdMozilla
On-premDesktop App
Communications / email-server-client
FirefoxMozilla
On-premDesktop App
Consumer Software / browser
mozillaoss-projectUSConsumer Softwareaka mozilla corp.
and 9 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1465686
bugzilla.mozilla.org
https://www.mozilla.org/security/advisories/mfsa2018-15/
mozilla.org
https://www.mozilla.org/security/advisories/mfsa2018-16/
mozilla.org
and 7 more references View all →

Timeline

Published
Jul 9, 2020
Last Updated
Nov 25, 2025

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