Is CVE-2014-6603 in the CISA KEV catalog?

No. CVE-2014-6603 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2014-6603?

CVE-2014-6603 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2014-6603?

CVE-2014-6603 has an EPSS score of 3.24% (87th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2014-6603?

Upgrade suricata on debian 11 to 2.0.4-1 or later.

CVE & CISA-KEV Catalog

CVE-2014-6603

MEDIUMEPSS 87th pctl

5.0

CVSS v2

NVD

Description

The SSHParseBanner function in SSH parser (app-layer-ssh.c) in Suricata before 2.0.4 allows remote attackers to bypass SSH rules, cause a denial of service (crash), or possibly have unspecified other impact via a crafted banner, which triggers a large memory allocation or an out-of-bounds write.

CWE-399Resource Management Errors

How to fix

Remediation Available

suricataDebian

Fixed in:2.0.4-1CVE-2014-6603

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

3.24%probability of exploitation in 30 days

87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

References

Exploit2

Other references5

Related Vulnerabilities

Other CWE-399 (Resource Management Errors) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2009-3103	High	10.0	90%	-	-
CVE-2009-0075	High	9.3	85%	-	-
CVE-2005-1790	Low	2.6	83%	-	-
CVE-2010-0806	High	8.8	82%	KEV	-
CVE-2009-2526	High	7.8	82%	-	-
CVE-2015-1868	High	7.8	82%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.