CVE-2013-5521

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

1.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 66.9% of scored records. A rank, not a probability.

NVD base score

The NVD has published no score for this record

NVD CVSS vector

No NVD score to derive

NVD analysis status

Modified. NVD last modified this record on 2026-06-16.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2013-10-25 01:00Z12 YR AGO

Last updated

2024-09-16 23:50Z1 YR AGO

Reserved

2013-08-22

Assigning CNA

cisco

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-264

Data version

5.1

Document digest

00b77af1c71758270ae304fc73c90479fa21de3932e228fcd08f43c8568d5339

• tools.cisco.com20131024 Cisco Identity Services Engine Guest User Account Exhaustion Vulnerabilityhttp://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5521vendor-advisoryx_refsource_CISCO