CVE-2018-12388

Name: CVE-2018-12388
Creator: NVD / NIST
Published: 2019-02-28T18:29:00.257+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.44%

Last modified Jun 17, 2026

CVE-2018-12388 is a vulnerability of currently unknown severity. Mozilla developers and community members reported memory safety bugs present in Firefox 62. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. EPSS estimates a 1.44% chance of exploitation in the next 30 days.

Description

Mozilla developers and community members reported memory safety bugs present in Firefox 62. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 63.

Metrics

EPSS Probability

1.44%

69.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 63.0
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	18.10

References

http://www.securityfocus.com/bid/105721Third Party Advisory
http://www.securitytracker.com/id/1041944Third Party Advisory
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1472639%2C1485698%2C1301547%2C1471427%2C1379411%2C1482122%2C1486314%2C1487167Issue Tracking, Permissions Required, Vendor Advisory
https://usn.ubuntu.com/3801-1/Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2018-26/Vendor Advisory
http://www.securityfocus.com/bid/105721Third Party Advisory
http://www.securitytracker.com/id/1041944Third Party Advisory
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1472639%2C1485698%2C1301547%2C1471427%2C1379411%2C1482122%2C1486314%2C1487167Issue Tracking, Permissions Required, Vendor Advisory
https://usn.ubuntu.com/3801-1/Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2018-26/Vendor Advisory

Timeline

Published: Feb 28, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-12388?

How severe is CVE-2018-12388?

Severity scoring for CVE-2018-12388 is pending analysis. The EPSS model estimates a 1.44% probability of exploitation in the next 30 days.

How do I fix CVE-2018-12388?

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-2018-12388?

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

Scan your code now

Source: NVD / NIST