CVE-2018-10242

HIGHNVD 7.57.5—

7.5

Suricata version 4.0.4 incorrectly handles the parsing of the SSH banner. A malformed SSH banner can cause the parsing code to read beyond the allocated data because SSHParseBanner in app-layer-ssh.c lacks a length check.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 61.8%
KEV: Not listed

Published

April 4, 2019

Last Modified

November 21, 2024

References (4)

cve@mitrehttps://lists.debian.org/debian-lts-announce/2019/04/msg00010.html
cve@mitrehttps://suricata-ids.org/2018/07/18/suricata-4-0-5-available/
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2019/04/msg00010.html
af854a3a-2127-422b-91ae-364da2661108https://suricata-ids.org/2018/07/18/suricata-4-0-5-available/

Weakness Classification(1)

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

CWE-125Out-of-bounds Read

Data Freshness Timeline

(refreshed 10× in last 7d / 18× 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
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-31 22:28 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 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-27 20:59 UTCEG score recompute
2026-05-27 20:59 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 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 17:46 UTCOSV refresh

Frequently asked(5)

What is CVE-2018-10242?

CVE-2018-10242 is a high vulnerability published on April 4, 2019. Suricata version 4.0.4 incorrectly handles the parsing of the SSH banner. A malformed SSH banner can cause the parsing code to read beyond the allocated data because SSHParseBanner in app-layer-ssh.c lacks a length check.

When was CVE-2018-10242 disclosed?

CVE-2018-10242 was first published in the National Vulnerability Database on April 4, 2019, 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-2018-10242 actively exploited?

CVE-2018-10242 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 61.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-10242?

CVE-2018-10242 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2018-10242?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-10242, 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.

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CVE-2018-10242

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2018-10242?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (4)

Frequently asked(5)

Related CVEs(same CWE)