CVE-2018-7173

MEDIUMNVD 5.55.5—Trending — 3 sources updated this week

5.5

A large loop in JBIG2Stream::readSymbolDictSeg in xpdf 4.00 allows an attacker to cause denial of service via a specific file due to inappropriate decoding.

CVSS v3: 5.5
EG Score: 5.5(medium)
EPSS: 35.1%
KEV: Not listed

Published

February 15, 2018

Last Modified

November 21, 2024

References (2)

cve@mitrehttps://forum.xpdfreader.com/viewtopic.php?f=3&t=607
af854a3a-2127-422b-91ae-364da2661108https://forum.xpdfreader.com/viewtopic.php?f=3&t=607

Weakness Classification(1)

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

CWE-172

Data Freshness Timeline

(refreshed 11× 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.

2026-06-02 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 11:27 UTCEG score recompute
2026-05-28 11:27 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

Frequently asked(5)

What is CVE-2018-7173?

CVE-2018-7173 is a medium vulnerability published on February 15, 2018. A large loop in JBIG2Stream::readSymbolDictSeg in xpdf 4.00 allows an attacker to cause denial of service via a specific file due to inappropriate decoding.

When was CVE-2018-7173 disclosed?

CVE-2018-7173 was first published in the National Vulnerability Database on February 15, 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-2018-7173 actively exploited?

CVE-2018-7173 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 35.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-7173?

CVE-2018-7173 has a CVSS v3 base score of 5.5 (NVD).

How do I remediate CVE-2018-7173?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-7173, 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-2018-7173

📅 Published

🔄 Last Modified

🔗 References (2)