Suricata before 4.0.5 stops TCP stream inspection upon a TCP RST from a server. This allows detection bypass because Windows TCP clients proceed with normal processing of TCP data that arrives shortly after an RST (i.e., they act as if the RST had not yet been received).
CVE-2018-14568
HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. NVD baseline CVSS 7.5; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 2%CVSS: 7.5Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 78.3%
- KEV
- Not listed
Published
July 23, 2018
Last Modified
November 21, 2024
References (8)
- cve@mitrehttps://github.com/OISF/suricata/pull/3428/commits/843d0b7a10bb45627f94764a6c5d468a24143345
- cve@mitrehttps://github.com/kirillwow/ids_bypass
- cve@mitrehttps://redmine.openinfosecfoundation.org/issues/2501
- cve@mitrehttps://suricata-ids.org/2018/07/18/suricata-4-0-5-available/
- af854a3a-2127-422b-91ae-364da2661108https://github.com/OISF/suricata/pull/3428/commits/843d0b7a10bb45627f94764a6c5d468a24143345
- af854a3a-2127-422b-91ae-364da2661108https://github.com/kirillwow/ids_bypass
- af854a3a-2127-422b-91ae-364da2661108https://redmine.openinfosecfoundation.org/issues/2501
- af854a3a-2127-422b-91ae-364da2661108https://suricata-ids.org/2018/07/18/suricata-4-0-5-available/
Data Freshness Timeline
(refreshed 13× in last 7d / 44× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-07 13:42 UTCEPSS rescore
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- 2026-05-28 04:44 UTCEG score recompute
- 2026-05-28 04:44 UTCGHSA enrichment
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Frequently asked(5)
What is CVE-2018-14568?
CVE-2018-14568 is a high vulnerability published on July 23, 2018. Suricata before 4.0.5 stops TCP stream inspection upon a TCP RST from a server. This allows detection bypass because Windows TCP clients proceed with normal processing of TCP data that arrives shortly after an RST (i.e., they act as if the RST had not yet been received).
When was CVE-2018-14568 disclosed?
CVE-2018-14568 was first published in the National Vulnerability Database on July 23, 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-2018-14568 actively exploited?
CVE-2018-14568 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 78.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-14568?
CVE-2018-14568 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2018-14568?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-14568, 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
Explore the affected products and dependency analysis for CVE-2018-14568
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