CVE-2018-0420: Cisco Wireless Lan Controller Software

Medium severity, CVSS 6.5. EPSS: 4.6% chance of exploitation in the next 30 days.

A vulnerability in the web-based interface of Cisco Wireless LAN Controller Software could allow an authenticated, remote attacker to view sensitive information. The issue is due to improper sanitization of user-supplied input in HTTP request parameters that describe filenames and pathnames. An attacker could exploit this vulnerability by using directory traversal techniques to submit a path to a desired file location. A successful exploit could allow the attacker to view system files on the targeted device, which may contain sensitive information.

Affected products

• Cisco Wireless Lan Controller Software: version 8.2(151.0) only

Published 2018-10-17. Last modified 2026-06-17.