CVE-2020-3262
HIGHCisco Wireless LAN Controller Firmware - Unauthenticated Denial of Service via CAPWAP Packet Handling
Title source: llmDescription
A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol handler of Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient validation of CAPWAP packets. An attacker could exploit this vulnerability by sending a malformed CAPWAP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to restart, resulting in a DoS condition.
References (1)
Core 1
Core References
Vendor Advisory vendor-advisory
x_refsource_cisco
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wlc-capwap-dos-Y2sD9uEw
Scores
CVSS v3
7.5
EPSS
0.0141
EPSS Percentile
80.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-20
Status
published
Products (2)
cisco/5508_wireless_controller_firmware
8.8\(120.0\)
cisco/5520_wireless_controller_firmware
8.8\(120.0\)
Published
Apr 15, 2020
Tracked Since
Feb 18, 2026