CVE-2026-20086 — Cisco / Cisco IOS XE Software

Description (CNA)

A vulnerability in the processing of Control and Provisioning of Wireless Access Points (CAPWAP) packets of Cisco IOS XE Wireless Controller Software for the Catalyst CW9800 Family could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of a malformed CAPWAP packet. 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 reload unexpectedly, resulting in a DoS condition.

Affected (CNA)

Vendor / product	Versions
Cisco / Cisco IOS XE Software	affected 17.14.1; affected 17.15.1; affected 17.15.2; affected 17.15.3; affected 17.15.2b; affected 17.15.4; affected 17.15.4d; affected 17.16.1; affected 17.17.1; affected 17.18.1

CWE

CWE-230

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wlc-dos-hnX5KGOm

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.