CVE-2018-12371

Name: CVE-2018-12371
Creator: NVD / NIST
Published: 2020-07-09T14:15:10.447+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.45%

Last modified Jun 17, 2026

CVE-2018-12371 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 1.45% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

1.45%

69.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-190

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 60.1.0
Mozilla	Firefox	< 61.0
Mozilla	Thunderbird	< 60.0

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1465686Exploit, Issue Tracking, Patch, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-15/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-16/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-19/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1465686Exploit, Issue Tracking, Patch, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-15/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-16/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-19/Vendor Advisory

Timeline

Published: Jul 9, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-12371?

How severe is CVE-2018-12371?

CVE-2018-12371 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.45% probability of exploitation in the next 30 days.

How do I fix CVE-2018-12371?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-12371?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST