Is CVE-2018-5147 in the CISA KEV catalog?

No. CVE-2018-5147 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-5147?

CVE-2018-5147 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2018-5147?

CVE-2018-5147 has an EPSS score of 2.47% (83th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-5147?

Upgrade firefox on debian unstable to 59.0.1-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2018-5147

CRITICALEPSS 83th pctl

9.8

CVSS v3

NVD

Description

The libtremor library has the same flaw as CVE-2018-5146. This library is used by Firefox in place of libvorbis on Android and ARM platforms. This vulnerability affects Firefox ESR < 52.7.2 and Firefox < 59.0.1.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

firefoxDebian

Fixed in:59.0.1-1CVE-2018-5147

DeveloperEditionWindows application

Affected:52.7.2Fixed in:52.7.2Mozilla

Affected:59.0.1Fixed in:59.0.1Mozilla

Mozilla Firefox (en-US)Windows application

Affected:52.7.2Fixed in:52.7.2Mozilla

Affected:59.0.1Fixed in:59.0.1Mozilla

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

2.47%probability of exploitation in 30 days

83rdpercentile

Elevated risk: more likely to be exploited than 83% of all known CVEs.

References

Vendor Advisory1

mozilla.org

Third-Party Advisory6

Issue Tracking1

bugzilla.mozilla.org

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix

Embed a live status badge for CVE-2018-5147

Markdown

[![CVE-2018-5147](https://tridentstack.com/cve/badge/CVE-2018-5147.svg)](https://tridentstack.com/cve/CVE-2018-5147)

HTML

<a href="https://tridentstack.com/cve/CVE-2018-5147"><img src="https://tridentstack.com/cve/badge/CVE-2018-5147.svg" alt="CVE-2018-5147"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-25.