CVE-2016-6376: Cisco Wireless Lan Controller

Medium severity, CVSS 6.5. EPSS: 0.9% chance of exploitation in the next 30 days.

The Adaptive Wireless Intrusion Prevention System (wIPS) feature on Cisco Wireless LAN Controller (WLC) devices before 8.0.140.0, 8.1.x and 8.2.x before 8.2.121.0, and 8.3.x before 8.3.102.0 allows remote attackers to cause a denial of service (device restart) via a malformed wIPS packet, aka Bug ID CSCuz40263.

Affected products

• Cisco Wireless Lan Controller: version 3.0_base only; version 3.1.59.24 only; version 3.1.105.0 only; version 3.1.111.0 only; version 3.2.78.0 only; version 3.2.116.21 only; …
• Cisco Wireless Lan Controller 6.0: version 182.0 only; version 188.0 only; version 196.0 only; version 199.4 only; version 202.0 only
• Cisco Wireless Lan Controller 7.0: version 98.0 only; version 98.218 only; version 116.0 only; version 220.0 only; version 240.0 only; version 250.0 only; …
• Cisco Wireless Lan Controller 7.1: version 91.0 only
• Cisco Wireless Lan Controller 7.2: version 103.0 only
• Cisco Wireless Lan Controller 7.4: version 1.19 only; version 1.54 only; version 140.0 only

Published 2016-09-02. Last modified 2026-06-17.