CVE-2018-6191

MEDIUMNVD 5.55.5—Elevated

5.5

The js_strtod function in jsdtoa.c in Artifex MuJS through 1.0.2 has an integer overflow because of incorrect exponent validation.

CVSS v3: 5.5
EG Score: 5.5(medium)
EPSS: 87.3%
KEV: Not listed

Published

January 24, 2018

Last Modified

November 21, 2024

References (8)

cve@mitrehttp://git.ghostscript.com/?p=mujs.git%3Ba=commit%3Bh=25821e6d74fab5fcc200fe5e818362e03e114428
cve@mitrehttp://www.securityfocus.com/bid/102840
cve@mitrehttps://bugs.ghostscript.com/show_bug.cgi?id=698920
cve@mitrehttps://www.exploit-db.com/exploits/43903/
af854a3a-2127-422b-91ae-364da2661108http://git.ghostscript.com/?p=mujs.git%3Ba=commit%3Bh=25821e6d74fab5fcc200fe5e818362e03e114428
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/102840
af854a3a-2127-422b-91ae-364da2661108https://bugs.ghostscript.com/show_bug.cgi?id=698920
af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/43903/

Weakness Classification(1)

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

CWE-190Integer Overflow or Wraparound

Data Freshness Timeline

(refreshed 9× in last 7d / 16× 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 12:10 UTCEG score recompute
2026-05-28 12:10 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-43903
First seen Jan 28, 2018
Artifex MuJS 1.0.2 - Denial of Service
Open source ↗

Frequently asked(5)

What is CVE-2018-6191?

CVE-2018-6191 is a medium vulnerability published on January 24, 2018. The js_strtod function in jsdtoa.c in Artifex MuJS through 1.0.2 has an integer overflow because of incorrect exponent validation.

When was CVE-2018-6191 disclosed?

CVE-2018-6191 was first published in the National Vulnerability Database on January 24, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2018-6191 actively exploited?

CVE-2018-6191 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 87.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-6191?

CVE-2018-6191 has a CVSS v3 base score of 5.5 (NVD).

How do I remediate CVE-2018-6191?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-6191, 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

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CVE-2018-6191

📅 Published

🔄 Last Modified

🔗 References (8)

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2018-6191?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (8)

Frequently asked(5)

Related CVEs(same CWE)