CVE-2013-5531

Cisco Identity Services Engine (ISE) 1.x before 1.1.1 allows remote attackers to bypass authentication, and read support-bundle configuration and credentials data, via a crafted session on TCP port 443, aka Bug ID CSCty20405.

Published: 2013-10-24 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-5531 is rated Moderate Risk (44.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.34%). EPSS rose +1.09% over the last day, indicating growing attacker interest. 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-2013-5531

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 0.25% 1.34% +1.09%
2 2025-03-30 0.30% 0.25% -0.05%
3 2025-03-29 — 0.30% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-5531

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:P/I:N/A:N 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:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2013-5531

Affected software / configurations for CVE-2013-5531

Vendor Product Version Raw CPE
cisco identity_services_engine_software 1.0 cpe:2.3:a:cisco:identity_services_engine_software:1.0:*:*:*:*:*:*:*
cisco identity_services_engine_software 1.1 cpe:2.3:a:cisco:identity_services_engine_software:1.1:*:*:*:*:*:*:*

References for CVE-2013-5531

cvelogic Threat Intelligence