CVE-2014-6603

Exp

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.

Published: 2014-10-07 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-6603 is rated High Exploit Risk (68/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 3.24%). 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +2.71% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2014-6603

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2014-6603

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.53% 3.24% +2.71%
2 2025-08-17 0.66% 0.53% -0.13%
3 2025-03-29 — 0.66% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-6603

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2014-6603

OS Trackers for CVE-2014-6603

vendor priority summary link
debian not yet assigned CVE-2014-6603 not yet assigned priority: Debian including 1 source packages (suricata), 4 status rows across 4 suites (bullseye, forky, sid, trixie): resolved 4. https://security-tracker.debian.org/tracker/CVE-2014-6603
ubuntu medium CVE-2014-6603 medium priority: Ubuntu including 1 source packages (suricata), 6 status rows across 6 suites (lucid, precise, trusty, upstream, utopic, vivid): not-affected 3, DNE 2, released 1. https://ubuntu.com/security/CVE-2014-6603

Affected software / configurations for CVE-2014-6603

Vendor Product Version Raw CPE
openinfosecfoundation suricata <= 2.0.3-2 cpe:2.3:a:openinfosecfoundation:suricata:*:*:*:*:*:*:*:*
openinfosecfoundation suricata 2.0.1-1 cpe:2.3:a:openinfosecfoundation:suricata:2.0.1-1:*:*:*:*:*:*:*
openinfosecfoundation suricata 2.0.1-2 cpe:2.3:a:openinfosecfoundation:suricata:2.0.1-2:*:*:*:*:*:*:*
openinfosecfoundation suricata 2.0.2-1 cpe:2.3:a:openinfosecfoundation:suricata:2.0.2-1:*:*:*:*:*:*:*
openinfosecfoundation suricata 2.0.2-2 cpe:2.3:a:openinfosecfoundation:suricata:2.0.2-2:*:*:*:*:*:*:*
openinfosecfoundation suricata 2.0.3-1 cpe:2.3:a:openinfosecfoundation:suricata:2.0.3-1:*:*:*:*:*:*:*

References for CVE-2014-6603

cvelogic Threat Intelligence