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CVE-2014-6603

21
FAUCET Score

CVE-2014-6603 describes a vulnerability in the SSHParseBanner function of Suricata versions prior to 2.0.4, affecting the openinfosecfoundation suricata product. A crafted SSH banner can lead to a large memory allocation or an out-of-bounds write, enabling remote attackers to bypass SSH rules, cause a denial of service (crash), or potentially achieve other unspecified impacts. With a CVSS score of 5.0 and an AV:N/AC:L/Au:N/C:N/I:N/A:P vector, this vulnerability is of medium severity, requiring no authentication and having a low attack complexity, primarily impacting availability. There is no evidence of active exploitation, no known exploit code available in Metasploit, Nuclei, or ExploitDB, and minimal community discussion or media coverage, indicating a low current threat landscape.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.0.3-2CPE matchmatch criteria
cpe:2.3:a:openinfosecfoundation:suricata:*:*:*:*:*:*:*:*
2.0.1-1CPE matchmatch criteria
cpe:2.3:a:openinfosecfoundation:suricata:2.0.1-1:*:*:*:*:*:*:*
2.0.1-2CPE matchmatch criteria
cpe:2.3:a:openinfosecfoundation:suricata:2.0.1-2:*:*:*:*:*:*:*
2.0.2-1CPE matchmatch criteria
cpe:2.3:a:openinfosecfoundation:suricata:2.0.2-1:*:*:*:*:*:*:*
2.0.2-2CPE matchmatch criteria
cpe:2.3:a:openinfosecfoundation:suricata:2.0.2-2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.24%
Probability of exploitation in next 30 days
EPSS Percentile
87.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0324 is in the 82nd percentile among its peer group of 23,684 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

lists.fedoraproject.org / pipermail/package-announce/2014-October/139630.html
lists.fedoraproject.org / pipermail/package-announce/2014-October/139821.html
packetstormsecurity.com / files/128382/Suricata-2.0.3-Out-Of-Bounds-Access.html
Exploit
seclists.org / fulldisclosure/2014/Sep/79
Exploit
exchange.xforce.ibmcloud.com / vulnerabilities/96157
securityfocus.com / archive/1/533515/100/0/threaded
securityfocus.com / bid/70083