CVE-2013-6747

IBM GSKit 7.x before 7.0.4.48 and 8.x before 8.0.50.16, as used in IBM Security Directory Server (ISDS) and Tivoli Directory Server (TDS), allows remote attackers to cause a denial of service (application crash or hang) via a malformed X.509 certificate chain.

Published: 2014-01-27 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-6747 is rated Moderate Risk (56/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.24%). Review affected assets and schedule remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-2013-6747

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 2.77% 2.24% -0.53%
2 2025-07-07 2.94% 2.77% -0.17%
3 2025-04-25 — 2.94% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-6747

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.1 2.0 HIGH
AV:N/AC:M/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 6.9 [email protected]

Weakness enumeration for CVE-2013-6747

Affected software / configurations for CVE-2013-6747

Vendor Product Version Raw CPE
ibm global_security_kit 8.5 cpe:2.3:a:ibm:global_security_kit:8.5:*:*:*:*:*:*:*
ibm global_security_kit 7.0 cpe:2.3:a:ibm:global_security_kit:7.0:*:*:*:*:*:*:*
ibm global_security_kit 7.0.4.28 cpe:2.3:a:ibm:global_security_kit:7.0.4.28:*:*:*:*:*:*:*
ibm global_security_kit 7.0.4.29 cpe:2.3:a:ibm:global_security_kit:7.0.4.29:*:*:*:*:*:*:*
ibm global_security_kit 8.0 cpe:2.3:a:ibm:global_security_kit:8.0:*:*:*:*:*:*:*
ibm global_security_kit 8.0.13 cpe:2.3:a:ibm:global_security_kit:8.0.13:*:*:*:*:*:*:*
ibm security_directory_server — cpe:2.3:a:ibm:security_directory_server:-:*:*:*:*:*:*:*
ibm tivoli_directory_server — cpe:2.3:a:ibm:tivoli_directory_server:-:*:*:*:*:*:*:*

References for CVE-2013-6747

cvelogic Threat Intelligence