CVE-2007-2038: Cisco 2000 Wireless Lan Controller

Medium severity, CVSS 6.1. EPSS: 1% chance of exploitation in the next 30 days.

The Network Processing Unit (NPU) in the Cisco Wireless LAN Controller (WLC) before 3.2.193.5, 4.0.x before 4.0.206.0, and 4.1.x allows remote attackers on a local wireless network to cause a denial of service (loss of packet forwarding) via (1) crafted SNAP packets, (2) malformed 802.11 traffic, or (3) packets with certain header length values, aka Bug ID CSCsg36361.

Affected products

• Cisco 2000 Wireless Lan Controller: any version
• Cisco 2100 Wireless Lan Controller: any version
• Cisco 4100 Wireless Lan Controller: any version
• Cisco 4400 Wireless Lan Controller: any version

Published 2007-04-16. Last modified 2026-06-16.