CVE-2018-5188

Name: CVE-2018-5188
Creator: NVD / NIST
Published: 2018-10-18T13:29:07.163+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.94%

Last modified Jun 17, 2026

CVE-2018-5188 is a vulnerability of currently unknown severity. Memory safety bugs present in Firefox 60, Firefox ESR 60, and Firefox ESR 52.8. 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 3.94% chance of exploitation in the next 30 days.

Description

Memory safety bugs present in Firefox 60, Firefox ESR 60, and Firefox ESR 52.8. 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 Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.

Metrics

EPSS Probability

3.94%

89.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	17.10
Canonical	Ubuntu Linux	18.04
Mozilla	Firefox	< 61.0
Mozilla	Firefox	>= 53.0, < 60.1.0
Mozilla	Firefox Esr	< 52.9
Mozilla	Thunderbird	< 52.9
Redhat	Enterprise Linux Desktop	6.0
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Server	6.0
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Server Aus	7.6
Redhat	Enterprise Linux Server Eus	7.5
Redhat	Enterprise Linux Server Eus	7.6
Redhat	Enterprise Linux Server Tus	7.6
Redhat	Enterprise Linux Workstation	6.0
Redhat	Enterprise Linux Workstation	7.0

References

http://www.securityfocus.com/bid/104555Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:2112Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2113Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2251Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2252Third Party Advisory
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1456189%2C1456975%2C1465898%2C1392739%2C1451297%2C1464063%2C1437842%2C1442722%2C1452576%2C1450688%2C1458264%2C1458270%2C1465108%2C1464829%2C1464079%2C1463494%2C1458048Issue Tracking, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2018/06/msg00014.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00013.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/201810-01Third Party Advisory
https://security.gentoo.org/glsa/201811-13Third Party Advisory
https://usn.ubuntu.com/3705-1/Third Party Advisory
https://usn.ubuntu.com/3714-1/Third Party Advisory
https://usn.ubuntu.com/3749-1/Third Party Advisory
https://www.debian.org/security/2018/dsa-4244Third Party 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/mfsa2018-17/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-18/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-19/Vendor Advisory
http://www.securityfocus.com/bid/104555Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:2112Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2113Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2251Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2252Third Party Advisory
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1456189%2C1456975%2C1465898%2C1392739%2C1451297%2C1464063%2C1437842%2C1442722%2C1452576%2C1450688%2C1458264%2C1458270%2C1465108%2C1464829%2C1464079%2C1463494%2C1458048Issue Tracking, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2018/06/msg00014.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00013.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/201810-01Third Party Advisory
https://security.gentoo.org/glsa/201811-13Third Party Advisory
https://usn.ubuntu.com/3705-1/Third Party Advisory
https://usn.ubuntu.com/3714-1/Third Party Advisory
https://usn.ubuntu.com/3749-1/Third Party Advisory
https://www.debian.org/security/2018/dsa-4244Third Party 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/mfsa2018-17/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-18/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-19/Vendor Advisory

Timeline

Published: Oct 18, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-5188?

How severe is CVE-2018-5188?

Severity scoring for CVE-2018-5188 is pending analysis. The EPSS model estimates a 3.94% probability of exploitation in the next 30 days.

How do I fix CVE-2018-5188?

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-2018-5188?

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

Scan your code now

Source: NVD / NIST