High severity8.6NVD Advisory· Published Sep 24, 2020· Updated Jun 17, 2026

CVE-2020-3559

Description

A vulnerability in Cisco Aironet Access Point (AP) Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to improper handling of clients that are trying to connect to the AP. An attacker could exploit this vulnerability by sending authentication requests from multiple clients to an affected device. A successful exploit could allow the attacker to cause the affected device to reload.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Cisco Systems, Inc./Aironet Access Point Softwarellm-fuzzy4 versions
(expand)+ 3 more
- (no CPE)
- (no CPE)range: n/a
- cpe:2.3:a:cisco:aironet_access_point_software:8.5\(151.0\):*:*:*:*:*:*:*
- cpe:2.3:a:cisco:aironet_access_point_software:17.2.0.26:*:*:*:*:*:*:*
Cisco Systems, Inc./Wireless Lan Controller Software
cpe:2.3:o:cisco:wireless_lan_controller:*:*:*:*:*:*:*:*
Range: >=8.9,<8.10.112.0
Cisco Systems, Inc./Business Access Points
cpe:2.3:a:cisco:business_access_points:*:*:*:*:*:*:*:*
Range: >=10.0,<10.1.1.0
Cisco Systems, Inc./Access Points
cpe:2.3:o:cisco:access_points:*:*:*:*:*:*:*:*
Range: <16.12.4a

Patches

Vulnerability mechanics

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-aironet-dos-h3DCuLXwnvdVendor Advisory

News mentions

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