CVE-2014-3291: Cisco Wireless Lan Controller

Medium severity, CVSS 5.7. EPSS: 1% chance of exploitation in the next 30 days.

Cisco Wireless LAN Controller (WLC) devices allow remote attackers to cause a denial of service (NULL pointer dereference and device restart) via a zero value in Cisco Discovery Protocol packet data that is not properly handled during SNMP polling, aka Bug ID CSCuo12321.

Affected products

• Cisco Wireless Lan Controller: any version

Published 2014-06-08. Last modified 2026-06-17.