CVE-2026-20086

Cisco IOS XE Wireless Controller Software (Catalyst CW9800 Family) is affected by a DoS vulnerability in CAPWAP packet processing. An unauthenticated, remote attacker can send a malformed CAPWAP packet to trigger an unexpected device reload, resulting in service disruption. Root cause: improper h...

CVE-2025-20293

A vulnerability in the Day One setup process of Cisco IOS XE Software for Catalyst 9800 Series Wireless Controllers for Cloud 9800-CL could allow an unauthenticated, remote attacker to access the public-key infrastructure PKI server that is running on an affected device. This vulnerability is due...

Cisco Patch-Palooza Tackles 29 High-Severity Bugs

Cisco Systems released a barrage of patches, Thursday, aimed at fixing bugs in the networking giant’s ubiquitous IOS operating system. The patches plug holes in a wide range of products and address denial-of-service, file overwrite and input validation attacks. The advisory was planned and part o...

CVE-2020-3494 Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Denial of Service Vulnerabilities

Multiple vulnerabilities in the Control and Provisioning of Wireless Access Points CAPWAP protocol processing of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers could allow an unauthenticated, adjacent attacker to cause a denial of service DoS condition of an affected...