CVE-2013-5521

Name: CVE-2013-5521
Creator: NVD / NIST
Published: 2013-10-25T03:52:54.953+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.23%

Last modified Jun 16, 2026

CVE-2013-5521 is a vulnerability of currently unknown severity. Cisco Identity Services Engine does not properly restrict the creation of guest accounts, which allows remote attackers to cause a denial of service (exhaustion of the account supply) via a series of requests within one session, aka Bug ID CSCue94287.. EPSS estimates a 1.23% chance of exploitation in the next 30 days.

Description

Cisco Identity Services Engine does not properly restrict the creation of guest accounts, which allows remote attackers to cause a denial of service (exhaustion of the account supply) via a series of requests within one session, aka Bug ID CSCue94287.

Metrics

EPSS Probability

1.23%

65.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-264

Affected Software

Vendor	Product	Versions
Cisco	Identity Services Engine Software	All versions

References

http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5521Vendor Advisory
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5521Vendor Advisory

Timeline

Published: Oct 25, 2013
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2013-5521?

How severe is CVE-2013-5521?

Severity scoring for CVE-2013-5521 is pending analysis. The EPSS model estimates a 1.23% probability of exploitation in the next 30 days.

How do I fix CVE-2013-5521?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2013-5521?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST