CVE-2013-5521: Cisco Identity Services Engine Software

Medium severity, CVSS 5.0. EPSS: 1.2% chance of exploitation in the next 30 days.

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.

Affected products

• Cisco Identity Services Engine Software: affected versions not specified

Published 2013-10-25. Last modified 2026-06-16.