CVE-2018-0441: Cisco Access Points

High severity, CVSS 7.4. EPSS: 0.9% chance of exploitation in the next 30 days.

A vulnerability in the 802.11r Fast Transition feature set of Cisco IOS Access Points (APs) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a corruption of certain timer mechanisms triggered by specific roaming events. This corruption will eventually cause a timer crash. An attacker could exploit this vulnerability by sending malicious reassociation events multiple times to the same AP in a short period of time, causing a DoS condition on the affected AP.

Affected products

• Cisco Access Points: version 8.0(140.0) only; version 8.2(141.0) only; version 8.2(151.0) only; version 8.3(102.0) only; version 8.3(112.0) only; version 8.3(114.74) only; …

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