CVE-2018-5147

CRITICALNVD 9.89.8—

9.8

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.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 81.0%
KEV: Not listed

Published

June 11, 2018

Last Modified

November 25, 2025

Advisory Details (8)

Auto-updated May 25, 2026

Patch available.

generic

http://www.securitytracker.com/id/1040544

generic

http://www.securityfocus.com/bid/103432

generic

Out of bounds memory write while processing Vorbis audio data — Mozilla

https://www.mozilla.org/security/advisories/mfsa2018-08/

generic

[SECURITY] [DSA 4143-1] firefox-esr security update

https://www.debian.org/security/2018/dsa-4143

generic

[SECURITY] [DSA 4141-1] libvorbisidec security update

https://www.debian.org/security/2018/dsa-4141

generic Patch Available

[SECURITY] [DLA 1319-1] firefox-esr security update

https://lists.debian.org/debian-lts-announce/2018/03/msg00022.html

generic Patch Available

[SECURITY] [DLA 1312-1] libvorbisidec security update

https://lists.debian.org/debian-lts-announce/2018/03/msg00016.html

generic

1446365 - (CVE-2018-5147) Out of bounds write in libtremor

https://bugzilla.mozilla.org/show_bug.cgi?id=1446365

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-787Out-of-bounds Write

Data Freshness Timeline

(refreshed 9× in last 7d / 19× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-04 13:10 UTCepss_batch
2026-06-04 13:10 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 06:46 UTCEG score recompute
2026-05-28 06:46 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-25 17:16 UTCOSV refresh

Frequently asked(5)

What is CVE-2018-5147?

CVE-2018-5147 is a critical vulnerability published on June 11, 2018. 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.

When was CVE-2018-5147 disclosed?

CVE-2018-5147 was first published in the National Vulnerability Database on June 11, 2018, with the most recent update on November 25, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2018-5147 actively exploited?

CVE-2018-5147 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 81.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

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

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

How do I remediate CVE-2018-5147?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-5147, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2018-5147

Explore →

Is Your Infrastructure Affected by CVE-2018-5147?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2018-5147

📅 Published

🔄 Last Modified

📋 Advisory Details (8)

Out of bounds memory write while processing Vorbis audio data — Mozilla

[SECURITY] [DSA 4143-1] firefox-esr security update

[SECURITY] [DSA 4141-1] libvorbisidec security update

[SECURITY] [DLA 1319-1] firefox-esr security update

[SECURITY] [DLA 1312-1] libvorbisidec security update

1446365 - (CVE-2018-5147) Out of bounds write in libtremor

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2018-5147?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

Advisory Details (8)

Frequently asked(5)

Related CVEs(same CWE)